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Finding the Fourth Proportional to 59,891.70, 89,824.95 and 30,281.70

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Solution

The fourth proportional to 59,891.70, 89,824.95 and 30,281.70 is: 45,416.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,891.70 : 89,824.95 = 30,281.70 : x
  2. Step 2: Convert to fraction form
    59,891.70/89,824.95 = 30,281.70/x
  3. Step 3: Cross multiply
    59,891.70x = 89,824.95 × 30,281.70
  4. Step 4: Simplify right side
    59,891.70x = 2,720,052,188.42
  5. Step 5: Solve for x
    x = 2,720,052,188.42/59,891.70
  6. Step 6: Final answer
    x = 45,416.18

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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.