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Finding the Fourth Proportional to 89,472.96, 134,200.80 and 45,082.08

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Solution

The fourth proportional to 89,472.96, 134,200.80 and 45,082.08 is: 67,618.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,472.96 : 134,200.80 = 45,082.08 : x
  2. Step 2: Convert to fraction form
    89,472.96/134,200.80 = 45,082.08/x
  3. Step 3: Cross multiply
    89,472.96x = 134,200.80 × 45,082.08
  4. Step 4: Simplify right side
    89,472.96x = 6,050,051,201.66
  5. Step 5: Solve for x
    x = 6,050,051,201.66/89,472.96
  6. Step 6: Final answer
    x = 67,618.77

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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.