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Finding the Fourth Proportional to 124,591.76, 171,958.92 and 74,294

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Solution

The fourth proportional to 124,591.76, 171,958.92 and 74,294 is: 102,539.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,591.76 : 171,958.92 = 74,294 : x
  2. Step 2: Convert to fraction form
    124,591.76/171,958.92 = 74,294/x
  3. Step 3: Cross multiply
    124,591.76x = 171,958.92 × 74,294
  4. Step 4: Simplify right side
    124,591.76x = 12,775,516,002.48
  5. Step 5: Solve for x
    x = 12,775,516,002.48/124,591.76
  6. Step 6: Final answer
    x = 102,539.01

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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.