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Finding the Fourth Proportional to 250,497.32, 375,711.42 and 138,384.68

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Solution

The fourth proportional to 250,497.32, 375,711.42 and 138,384.68 is: 207,557.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,497.32 : 375,711.42 = 138,384.68 : x
  2. Step 2: Convert to fraction form
    250,497.32/375,711.42 = 138,384.68/x
  3. Step 3: Cross multiply
    250,497.32x = 375,711.42 × 138,384.68
  4. Step 4: Simplify right side
    250,497.32x = 51,992,704,629.05
  5. Step 5: Solve for x
    x = 51,992,704,629.05/250,497.32
  6. Step 6: Final answer
    x = 207,557.93

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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.