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Finding the Fourth Proportional to 123,884.92, 170,957.28 and 70,174.92

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Solution

The fourth proportional to 123,884.92, 170,957.28 and 70,174.92 is: 96,839.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,884.92 : 170,957.28 = 70,174.92 : x
  2. Step 2: Convert to fraction form
    123,884.92/170,957.28 = 70,174.92/x
  3. Step 3: Cross multiply
    123,884.92x = 170,957.28 × 70,174.92
  4. Step 4: Simplify right side
    123,884.92x = 11,996,913,447.42
  5. Step 5: Solve for x
    x = 11,996,913,447.42/123,884.92
  6. Step 6: Final answer
    x = 96,839.17

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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.