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Finding the Fourth Proportional to 53,460,206.40, 80,190,309.60 and 53,460,206.40

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Solution

The fourth proportional to 53,460,206.40, 80,190,309.60 and 53,460,206.40 is: 80,190,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,460,206.40 : 80,190,309.60 = 53,460,206.40 : x
  2. Step 2: Convert to fraction form
    53,460,206.40/80,190,309.60 = 53,460,206.40/x
  3. Step 3: Cross multiply
    53,460,206.40x = 80,190,309.60 × 53,460,206.40
  4. Step 4: Simplify right side
    53,460,206.40x = 4,286,990,502,495,901
  5. Step 5: Solve for x
    x = 4,286,990,502,495,901/53,460,206.40
  6. Step 6: Final answer
    x = 80,190,309.60

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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.