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Finding the Fourth Proportional to 555,147.92, 832,801.31 and 170,929.28

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Solution

The fourth proportional to 555,147.92, 832,801.31 and 170,929.28 is: 256,418.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,147.92 : 832,801.31 = 170,929.28 : x
  2. Step 2: Convert to fraction form
    555,147.92/832,801.31 = 170,929.28/x
  3. Step 3: Cross multiply
    555,147.92x = 832,801.31 × 170,929.28
  4. Step 4: Simplify right side
    555,147.92x = 142,350,128,301.36
  5. Step 5: Solve for x
    x = 142,350,128,301.36/555,147.92
  6. Step 6: Final answer
    x = 256,418.38

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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.