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Finding the Fourth Proportional to 302,487.92, 453,626.12 and 89,199.20

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Solution

The fourth proportional to 302,487.92, 453,626.12 and 89,199.20 is: 133,767.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,487.92 : 453,626.12 = 89,199.20 : x
  2. Step 2: Convert to fraction form
    302,487.92/453,626.12 = 89,199.20/x
  3. Step 3: Cross multiply
    302,487.92x = 453,626.12 × 89,199.20
  4. Step 4: Simplify right side
    302,487.92x = 40,463,087,003.10
  5. Step 5: Solve for x
    x = 40,463,087,003.10/302,487.92
  6. Step 6: Final answer
    x = 133,767.61

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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.