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Finding the Fourth Proportional to 88,689.40, 133,071.90 and 46,601.80

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Solution

The fourth proportional to 88,689.40, 133,071.90 and 46,601.80 is: 69,922.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,689.40 : 133,071.90 = 46,601.80 : x
  2. Step 2: Convert to fraction form
    88,689.40/133,071.90 = 46,601.80/x
  3. Step 3: Cross multiply
    88,689.40x = 133,071.90 × 46,601.80
  4. Step 4: Simplify right side
    88,689.40x = 6,201,390,069.42
  5. Step 5: Solve for x
    x = 6,201,390,069.42/88,689.40
  6. Step 6: Final answer
    x = 69,922.56

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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.