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Finding the Fourth Proportional to 519,693.60, 779,542.20 and 159,862.02

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Solution

The fourth proportional to 519,693.60, 779,542.20 and 159,862.02 is: 239,793.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,693.60 : 779,542.20 = 159,862.02 : x
  2. Step 2: Convert to fraction form
    519,693.60/779,542.20 = 159,862.02/x
  3. Step 3: Cross multiply
    519,693.60x = 779,542.20 × 159,862.02
  4. Step 4: Simplify right side
    519,693.60x = 124,619,186,070.22
  5. Step 5: Solve for x
    x = 124,619,186,070.22/519,693.60
  6. Step 6: Final answer
    x = 239,793.58

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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.