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Finding the Fourth Proportional to 247,466.80, 371,200.20 and 188,417.80

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Solution

The fourth proportional to 247,466.80, 371,200.20 and 188,417.80 is: 282,626.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,466.80 : 371,200.20 = 188,417.80 : x
  2. Step 2: Convert to fraction form
    247,466.80/371,200.20 = 188,417.80/x
  3. Step 3: Cross multiply
    247,466.80x = 371,200.20 × 188,417.80
  4. Step 4: Simplify right side
    247,466.80x = 69,940,725,043.56
  5. Step 5: Solve for x
    x = 69,940,725,043.56/247,466.80
  6. Step 6: Final answer
    x = 282,626.70

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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.