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Finding the Fourth Proportional to 137,814.20, 206,721.30 and 44,329.40

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Solution

The fourth proportional to 137,814.20, 206,721.30 and 44,329.40 is: 66,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,814.20 : 206,721.30 = 44,329.40 : x
  2. Step 2: Convert to fraction form
    137,814.20/206,721.30 = 44,329.40/x
  3. Step 3: Cross multiply
    137,814.20x = 206,721.30 × 44,329.40
  4. Step 4: Simplify right side
    137,814.20x = 9,163,831,196.22
  5. Step 5: Solve for x
    x = 9,163,831,196.22/137,814.20
  6. Step 6: Final answer
    x = 66,494.10

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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.