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Finding the Fourth Proportional to 83,684.60, 125,526.48 and 39,311.12

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Solution

The fourth proportional to 83,684.60, 125,526.48 and 39,311.12 is: 58,966.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,684.60 : 125,526.48 = 39,311.12 : x
  2. Step 2: Convert to fraction form
    83,684.60/125,526.48 = 39,311.12/x
  3. Step 3: Cross multiply
    83,684.60x = 125,526.48 × 39,311.12
  4. Step 4: Simplify right side
    83,684.60x = 4,934,586,518.46
  5. Step 5: Solve for x
    x = 4,934,586,518.46/83,684.60
  6. Step 6: Final answer
    x = 58,966.48

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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.