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Finding the Fourth Proportional to 141,713.91, 212,320.22 and 133,284.87

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Solution

The fourth proportional to 141,713.91, 212,320.22 and 133,284.87 is: 199,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,713.91 : 212,320.22 = 133,284.87 : x
  2. Step 2: Convert to fraction form
    141,713.91/212,320.22 = 133,284.87/x
  3. Step 3: Cross multiply
    141,713.91x = 212,320.22 × 133,284.87
  4. Step 4: Simplify right side
    141,713.91x = 28,299,072,254.65
  5. Step 5: Solve for x
    x = 28,299,072,254.65/141,713.91
  6. Step 6: Final answer
    x = 199,691.56

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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.