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Finding the Fourth Proportional to 91,792.80, 137,689.20 and 29,469.60

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Solution

The fourth proportional to 91,792.80, 137,689.20 and 29,469.60 is: 44,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,792.80 : 137,689.20 = 29,469.60 : x
  2. Step 2: Convert to fraction form
    91,792.80/137,689.20 = 29,469.60/x
  3. Step 3: Cross multiply
    91,792.80x = 137,689.20 × 29,469.60
  4. Step 4: Simplify right side
    91,792.80x = 4,057,645,648.32
  5. Step 5: Solve for x
    x = 4,057,645,648.32/91,792.80
  6. Step 6: Final answer
    x = 44,204.40

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1.5x scale

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.