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Finding the Fourth Proportional to 144,124.34, 216,082.62 and 87,951.24

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Solution

The fourth proportional to 144,124.34, 216,082.62 and 87,951.24 is: 131,863.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,124.34 : 216,082.62 = 87,951.24 : x
  2. Step 2: Convert to fraction form
    144,124.34/216,082.62 = 87,951.24/x
  3. Step 3: Cross multiply
    144,124.34x = 216,082.62 × 87,951.24
  4. Step 4: Simplify right side
    144,124.34x = 19,004,734,751.49
  5. Step 5: Solve for x
    x = 19,004,734,751.49/144,124.34
  6. Step 6: Final answer
    x = 131,863.47

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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.