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Finding the Fourth Proportional to 123,892.92, 170,968.32 and 70,182.90

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Solution

The fourth proportional to 123,892.92, 170,968.32 and 70,182.90 is: 96,850.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,892.92 : 170,968.32 = 70,182.90 : x
  2. Step 2: Convert to fraction form
    123,892.92/170,968.32 = 70,182.90/x
  3. Step 3: Cross multiply
    123,892.92x = 170,968.32 × 70,182.90
  4. Step 4: Simplify right side
    123,892.92x = 11,999,052,505.73
  5. Step 5: Solve for x
    x = 11,999,052,505.73/123,892.92
  6. Step 6: Final answer
    x = 96,850.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.