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Finding the Fourth Proportional to 247,098.76, 370,694.55 and 112,172.31

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Solution

The fourth proportional to 247,098.76, 370,694.55 and 112,172.31 is: 168,279.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,098.76 : 370,694.55 = 112,172.31 : x
  2. Step 2: Convert to fraction form
    247,098.76/370,694.55 = 112,172.31/x
  3. Step 3: Cross multiply
    247,098.76x = 370,694.55 × 112,172.31
  4. Step 4: Simplify right side
    247,098.76x = 41,581,663,977.91
  5. Step 5: Solve for x
    x = 41,581,663,977.91/247,098.76
  6. Step 6: Final answer
    x = 168,279.53

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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.