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Finding the Fourth Proportional to 144,502.63, 216,772.41 and 55,781.52

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Solution

The fourth proportional to 144,502.63, 216,772.41 and 55,781.52 is: 83,679.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,502.63 : 216,772.41 = 55,781.52 : x
  2. Step 2: Convert to fraction form
    144,502.63/216,772.41 = 55,781.52/x
  3. Step 3: Cross multiply
    144,502.63x = 216,772.41 × 55,781.52
  4. Step 4: Simplify right side
    144,502.63x = 12,091,894,523.86
  5. Step 5: Solve for x
    x = 12,091,894,523.86/144,502.63
  6. Step 6: Final answer
    x = 83,679.41

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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.