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Finding the Fourth Proportional to 144,572.86, 216,874.02 and 49,790.71

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Solution

The fourth proportional to 144,572.86, 216,874.02 and 49,790.71 is: 74,691.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,572.86 : 216,874.02 = 49,790.71 : x
  2. Step 2: Convert to fraction form
    144,572.86/216,874.02 = 49,790.71/x
  3. Step 3: Cross multiply
    144,572.86x = 216,874.02 × 49,790.71
  4. Step 4: Simplify right side
    144,572.86x = 10,798,311,436.35
  5. Step 5: Solve for x
    x = 10,798,311,436.35/144,572.86
  6. Step 6: Final answer
    x = 74,691.14

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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.