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Finding the Fourth Proportional to 247,177.15, 341,107.15 and 145,206.91

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Solution

The fourth proportional to 247,177.15, 341,107.15 and 145,206.91 is: 200,387.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,177.15 : 341,107.15 = 145,206.91 : x
  2. Step 2: Convert to fraction form
    247,177.15/341,107.15 = 145,206.91/x
  3. Step 3: Cross multiply
    247,177.15x = 341,107.15 × 145,206.91
  4. Step 4: Simplify right side
    247,177.15x = 49,531,114,014.62
  5. Step 5: Solve for x
    x = 49,531,114,014.62/247,177.15
  6. Step 6: Final answer
    x = 200,387.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.