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Finding the Fourth Proportional to 89,902.88, 134,812.61 and 52,473.73

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Solution

The fourth proportional to 89,902.88, 134,812.61 and 52,473.73 is: 78,686.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,902.88 : 134,812.61 = 52,473.73 : x
  2. Step 2: Convert to fraction form
    89,902.88/134,812.61 = 52,473.73/x
  3. Step 3: Cross multiply
    89,902.88x = 134,812.61 × 52,473.73
  4. Step 4: Simplify right side
    89,902.88x = 7,074,119,561.30
  5. Step 5: Solve for x
    x = 7,074,119,561.30/89,902.88
  6. Step 6: Final answer
    x = 78,686.24

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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.