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Finding the Fourth Proportional to 137,642.64, 206,324.55 and 93,273.90

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Solution

The fourth proportional to 137,642.64, 206,324.55 and 93,273.90 is: 139,816.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,642.64 : 206,324.55 = 93,273.90 : x
  2. Step 2: Convert to fraction form
    137,642.64/206,324.55 = 93,273.90/x
  3. Step 3: Cross multiply
    137,642.64x = 206,324.55 × 93,273.90
  4. Step 4: Simplify right side
    137,642.64x = 19,244,695,444.25
  5. Step 5: Solve for x
    x = 19,244,695,444.25/137,642.64
  6. Step 6: Final answer
    x = 139,816.38

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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.