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Finding the Fourth Proportional to 137,661.60, 206,492.40 and 44,176.80

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Solution

The fourth proportional to 137,661.60, 206,492.40 and 44,176.80 is: 66,265.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,661.60 : 206,492.40 = 44,176.80 : x
  2. Step 2: Convert to fraction form
    137,661.60/206,492.40 = 44,176.80/x
  3. Step 3: Cross multiply
    137,661.60x = 206,492.40 × 44,176.80
  4. Step 4: Simplify right side
    137,661.60x = 9,122,173,456.32
  5. Step 5: Solve for x
    x = 9,122,173,456.32/137,661.60
  6. Step 6: Final answer
    x = 66,265.20

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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.