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Finding the Fourth Proportional to 389,862.60, 584,793.90 and 94,374.60

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Solution

The fourth proportional to 389,862.60, 584,793.90 and 94,374.60 is: 141,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,862.60 : 584,793.90 = 94,374.60 : x
  2. Step 2: Convert to fraction form
    389,862.60/584,793.90 = 94,374.60/x
  3. Step 3: Cross multiply
    389,862.60x = 584,793.90 × 94,374.60
  4. Step 4: Simplify right side
    389,862.60x = 55,189,690,394.94
  5. Step 5: Solve for x
    x = 55,189,690,394.94/389,862.60
  6. Step 6: Final answer
    x = 141,561.90

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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.