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Finding the Fourth Proportional to 137,356.65, 206,034.26 and 43,860.33

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Solution

The fourth proportional to 137,356.65, 206,034.26 and 43,860.33 is: 65,790.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,356.65 : 206,034.26 = 43,860.33 : x
  2. Step 2: Convert to fraction form
    137,356.65/206,034.26 = 43,860.33/x
  3. Step 3: Cross multiply
    137,356.65x = 206,034.26 × 43,860.33
  4. Step 4: Simplify right side
    137,356.65x = 9,036,730,415.60
  5. Step 5: Solve for x
    x = 9,036,730,415.60/137,356.65
  6. Step 6: Final answer
    x = 65,790.27

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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.