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Finding the Fourth Proportional to 247,359.68, 371,060.24 and 78,904.16

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Solution

The fourth proportional to 247,359.68, 371,060.24 and 78,904.16 is: 118,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,359.68 : 371,060.24 = 78,904.16 : x
  2. Step 2: Convert to fraction form
    247,359.68/371,060.24 = 78,904.16/x
  3. Step 3: Cross multiply
    247,359.68x = 371,060.24 × 78,904.16
  4. Step 4: Simplify right side
    247,359.68x = 29,278,196,546.60
  5. Step 5: Solve for x
    x = 29,278,196,546.60/247,359.68
  6. Step 6: Final answer
    x = 118,362.85

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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.