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Finding the Fourth Proportional to 247,232.41, 370,725.91 and 78,730.76

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Solution

The fourth proportional to 247,232.41, 370,725.91 and 78,730.76 is: 118,057.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,232.41 : 370,725.91 = 78,730.76 : x
  2. Step 2: Convert to fraction form
    247,232.41/370,725.91 = 78,730.76/x
  3. Step 3: Cross multiply
    247,232.41x = 370,725.91 × 78,730.76
  4. Step 4: Simplify right side
    247,232.41x = 29,187,533,375.98
  5. Step 5: Solve for x
    x = 29,187,533,375.98/247,232.41
  6. Step 6: Final answer
    x = 118,057.07

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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.