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Finding the Fourth Proportional to 424,642.50, 637,062.17 and 144,159.75

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Solution

The fourth proportional to 424,642.50, 637,062.17 and 144,159.75 is: 216,273.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,642.50 : 637,062.17 = 144,159.75 : x
  2. Step 2: Convert to fraction form
    424,642.50/637,062.17 = 144,159.75/x
  3. Step 3: Cross multiply
    424,642.50x = 637,062.17 × 144,159.75
  4. Step 4: Simplify right side
    424,642.50x = 91,838,722,440.86
  5. Step 5: Solve for x
    x = 91,838,722,440.86/424,642.50
  6. Step 6: Final answer
    x = 216,273.04

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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.