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Finding the Fourth Proportional to 59,902.80, 89,735.40 and 52,515.60

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Solution

The fourth proportional to 59,902.80, 89,735.40 and 52,515.60 is: 78,669.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,902.80 : 89,735.40 = 52,515.60 : x
  2. Step 2: Convert to fraction form
    59,902.80/89,735.40 = 52,515.60/x
  3. Step 3: Cross multiply
    59,902.80x = 89,735.40 × 52,515.60
  4. Step 4: Simplify right side
    59,902.80x = 4,712,508,372.24
  5. Step 5: Solve for x
    x = 4,712,508,372.24/59,902.80
  6. Step 6: Final answer
    x = 78,669.25

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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.