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Finding the Fourth Proportional to 144,330.71, 216,440.71 and 49,543.22

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Solution

The fourth proportional to 144,330.71, 216,440.71 and 49,543.22 is: 74,295.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,330.71 : 216,440.71 = 49,543.22 : x
  2. Step 2: Convert to fraction form
    144,330.71/216,440.71 = 49,543.22/x
  3. Step 3: Cross multiply
    144,330.71x = 216,440.71 × 49,543.22
  4. Step 4: Simplify right side
    144,330.71x = 10,723,170,129.73
  5. Step 5: Solve for x
    x = 10,723,170,129.73/144,330.71
  6. Step 6: Final answer
    x = 74,295.83

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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.