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Finding the Fourth Proportional to 71,649.65, 107,326.71 and 41,977.46

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Solution

The fourth proportional to 71,649.65, 107,326.71 and 41,977.46 is: 62,879.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,649.65 : 107,326.71 = 41,977.46 : x
  2. Step 2: Convert to fraction form
    71,649.65/107,326.71 = 41,977.46/x
  3. Step 3: Cross multiply
    71,649.65x = 107,326.71 × 41,977.46
  4. Step 4: Simplify right side
    71,649.65x = 4,505,302,139.32
  5. Step 5: Solve for x
    x = 4,505,302,139.32/71,649.65
  6. Step 6: Final answer
    x = 62,879.62

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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.