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Finding the Fourth Proportional to 144,537.76, 216,806.88 and 94,931.20

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Solution

The fourth proportional to 144,537.76, 216,806.88 and 94,931.20 is: 142,396.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,537.76 : 216,806.88 = 94,931.20 : x
  2. Step 2: Convert to fraction form
    144,537.76/216,806.88 = 94,931.20/x
  3. Step 3: Cross multiply
    144,537.76x = 216,806.88 × 94,931.20
  4. Step 4: Simplify right side
    144,537.76x = 20,581,737,286.66
  5. Step 5: Solve for x
    x = 20,581,737,286.66/144,537.76
  6. Step 6: Final answer
    x = 142,396.96

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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.