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Finding the Fourth Proportional to 273,300.69, 409,565.68 and 129,052.61

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Solution

The fourth proportional to 273,300.69, 409,565.68 and 129,052.61 is: 193,396.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,300.69 : 409,565.68 = 129,052.61 : x
  2. Step 2: Convert to fraction form
    273,300.69/409,565.68 = 129,052.61/x
  3. Step 3: Cross multiply
    273,300.69x = 409,565.68 × 129,052.61
  4. Step 4: Simplify right side
    273,300.69x = 52,855,519,970.42
  5. Step 5: Solve for x
    x = 52,855,519,970.42/273,300.69
  6. Step 6: Final answer
    x = 193,396.95

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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.