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Finding the Fourth Proportional to 247,497.80, 371,246.70 and 178,032.20

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Solution

The fourth proportional to 247,497.80, 371,246.70 and 178,032.20 is: 267,048.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,497.80 : 371,246.70 = 178,032.20 : x
  2. Step 2: Convert to fraction form
    247,497.80/371,246.70 = 178,032.20/x
  3. Step 3: Cross multiply
    247,497.80x = 371,246.70 × 178,032.20
  4. Step 4: Simplify right side
    247,497.80x = 66,093,866,743.74
  5. Step 5: Solve for x
    x = 66,093,866,743.74/247,497.80
  6. Step 6: Final answer
    x = 267,048.30

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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.