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Finding the Fourth Proportional to 144,675.71, 217,013.59 and 60,389.90

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Solution

The fourth proportional to 144,675.71, 217,013.59 and 60,389.90 is: 90,584.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,675.71 : 217,013.59 = 60,389.90 : x
  2. Step 2: Convert to fraction form
    144,675.71/217,013.59 = 60,389.90/x
  3. Step 3: Cross multiply
    144,675.71x = 217,013.59 × 60,389.90
  4. Step 4: Simplify right side
    144,675.71x = 13,105,427,913.67
  5. Step 5: Solve for x
    x = 13,105,427,913.67/144,675.71
  6. Step 6: Final answer
    x = 90,584.85

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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.