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Finding the Fourth Proportional to 62,391.20, 93,586.80 and 59,319.20

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Solution

The fourth proportional to 62,391.20, 93,586.80 and 59,319.20 is: 88,978.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,391.20 : 93,586.80 = 59,319.20 : x
  2. Step 2: Convert to fraction form
    62,391.20/93,586.80 = 59,319.20/x
  3. Step 3: Cross multiply
    62,391.20x = 93,586.80 × 59,319.20
  4. Step 4: Simplify right side
    62,391.20x = 5,551,494,106.56
  5. Step 5: Solve for x
    x = 5,551,494,106.56/62,391.20
  6. Step 6: Final answer
    x = 88,978.80

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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.