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Finding the Fourth Proportional to 137,894.40, 206,841.60 and 44,400.15

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Solution

The fourth proportional to 137,894.40, 206,841.60 and 44,400.15 is: 66,600.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,894.40 : 206,841.60 = 44,400.15 : x
  2. Step 2: Convert to fraction form
    137,894.40/206,841.60 = 44,400.15/x
  3. Step 3: Cross multiply
    137,894.40x = 206,841.60 × 44,400.15
  4. Step 4: Simplify right side
    137,894.40x = 9,183,798,066.24
  5. Step 5: Solve for x
    x = 9,183,798,066.24/137,894.40
  6. Step 6: Final answer
    x = 66,600.23

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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.