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Finding the Fourth Proportional to 71,399.80, 107,026.80 and 41,802.40

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Solution

The fourth proportional to 71,399.80, 107,026.80 and 41,802.40 is: 62,660.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,399.80 : 107,026.80 = 41,802.40 : x
  2. Step 2: Convert to fraction form
    71,399.80/107,026.80 = 41,802.40/x
  3. Step 3: Cross multiply
    71,399.80x = 107,026.80 × 41,802.40
  4. Step 4: Simplify right side
    71,399.80x = 4,473,977,104.32
  5. Step 5: Solve for x
    x = 4,473,977,104.32/71,399.80
  6. Step 6: Final answer
    x = 62,660.92

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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.