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Finding the Fourth Proportional to 60,604.61, 90,719.70 and 39,499.25

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Solution

The fourth proportional to 60,604.61, 90,719.70 and 39,499.25 is: 59,126.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,604.61 : 90,719.70 = 39,499.25 : x
  2. Step 2: Convert to fraction form
    60,604.61/90,719.70 = 39,499.25/x
  3. Step 3: Cross multiply
    60,604.61x = 90,719.70 × 39,499.25
  4. Step 4: Simplify right side
    60,604.61x = 3,583,359,508.50
  5. Step 5: Solve for x
    x = 3,583,359,508.50/60,604.61
  6. Step 6: Final answer
    x = 59,126.85

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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.