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Finding the Fourth Proportional to 181,062.48, 249,854.56 and 100,490.04

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Solution

The fourth proportional to 181,062.48, 249,854.56 and 100,490.04 is: 138,669.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,062.48 : 249,854.56 = 100,490.04 : x
  2. Step 2: Convert to fraction form
    181,062.48/249,854.56 = 100,490.04/x
  3. Step 3: Cross multiply
    181,062.48x = 249,854.56 × 100,490.04
  4. Step 4: Simplify right side
    181,062.48x = 25,107,894,728.58
  5. Step 5: Solve for x
    x = 25,107,894,728.58/181,062.48
  6. Step 6: Final answer
    x = 138,669.78

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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.