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Finding the Fourth Proportional to 144,605.61, 216,902.03 and 39,424.59

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Solution

The fourth proportional to 144,605.61, 216,902.03 and 39,424.59 is: 59,135.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,605.61 : 216,902.03 = 39,424.59 : x
  2. Step 2: Convert to fraction form
    144,605.61/216,902.03 = 39,424.59/x
  3. Step 3: Cross multiply
    144,605.61x = 216,902.03 × 39,424.59
  4. Step 4: Simplify right side
    144,605.61x = 8,551,273,405.79
  5. Step 5: Solve for x
    x = 8,551,273,405.79/144,605.61
  6. Step 6: Final answer
    x = 59,135.14

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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.