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Finding the Fourth Proportional to 88,807.70, 133,211.55 and 53,729.30

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Solution

The fourth proportional to 88,807.70, 133,211.55 and 53,729.30 is: 80,593.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,807.70 : 133,211.55 = 53,729.30 : x
  2. Step 2: Convert to fraction form
    88,807.70/133,211.55 = 53,729.30/x
  3. Step 3: Cross multiply
    88,807.70x = 133,211.55 × 53,729.30
  4. Step 4: Simplify right side
    88,807.70x = 7,157,363,333.42
  5. Step 5: Solve for x
    x = 7,157,363,333.42/88,807.70
  6. Step 6: Final answer
    x = 80,593.95

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1.5x scale

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.