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Finding the Fourth Proportional to 80,857,862,446.40, 121,286,793,669.60 and 80,857,862,446.40

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Solution

The fourth proportional to 80,857,862,446.40, 121,286,793,669.60 and 80,857,862,446.40 is: 121,286,793,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,857,862,446.40 : 121,286,793,669.60 = 80,857,862,446.40 : x
  2. Step 2: Convert to fraction form
    80,857,862,446.40/121,286,793,669.60 = 80,857,862,446.40/x
  3. Step 3: Cross multiply
    80,857,862,446.40x = 121,286,793,669.60 × 80,857,862,446.40
  4. Step 4: Simplify right side
    80,857,862,446.40x = 9,806,990,879,101,414,277,120
  5. Step 5: Solve for x
    x = 9,806,990,879,101,414,277,120/80,857,862,446.40
  6. Step 6: Final answer
    x = 121,286,793,669.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.