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Finding the Fourth Proportional to 137,907.90, 206,919.45 and 44,442.30

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Solution

The fourth proportional to 137,907.90, 206,919.45 and 44,442.30 is: 66,682.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,907.90 : 206,919.45 = 44,442.30 : x
  2. Step 2: Convert to fraction form
    137,907.90/206,919.45 = 44,442.30/x
  3. Step 3: Cross multiply
    137,907.90x = 206,919.45 × 44,442.30
  4. Step 4: Simplify right side
    137,907.90x = 9,195,976,272.74
  5. Step 5: Solve for x
    x = 9,195,976,272.74/137,907.90
  6. Step 6: Final answer
    x = 66,682.01

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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.