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Finding the Fourth Proportional to 155,551.92, 232,892.10 and 84,218.46

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Solution

The fourth proportional to 155,551.92, 232,892.10 and 84,218.46 is: 126,091.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,551.92 : 232,892.10 = 84,218.46 : x
  2. Step 2: Convert to fraction form
    155,551.92/232,892.10 = 84,218.46/x
  3. Step 3: Cross multiply
    155,551.92x = 232,892.10 × 84,218.46
  4. Step 4: Simplify right side
    155,551.92x = 19,613,814,008.17
  5. Step 5: Solve for x
    x = 19,613,814,008.17/155,551.92
  6. Step 6: Final answer
    x = 126,091.75

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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.