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Finding the Fourth Proportional to 618,773.88, 928,161.55 and 169,498.62

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Solution

The fourth proportional to 618,773.88, 928,161.55 and 169,498.62 is: 254,248.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,773.88 : 928,161.55 = 169,498.62 : x
  2. Step 2: Convert to fraction form
    618,773.88/928,161.55 = 169,498.62/x
  3. Step 3: Cross multiply
    618,773.88x = 928,161.55 × 169,498.62
  4. Step 4: Simplify right side
    618,773.88x = 157,322,101,862.06
  5. Step 5: Solve for x
    x = 157,322,101,862.06/618,773.88
  6. Step 6: Final answer
    x = 254,248.13

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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.