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Finding the Fourth Proportional to 124,969.80, 187,470.90 and 61,822.20

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Solution

The fourth proportional to 124,969.80, 187,470.90 and 61,822.20 is: 92,741.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,969.80 : 187,470.90 = 61,822.20 : x
  2. Step 2: Convert to fraction form
    124,969.80/187,470.90 = 61,822.20/x
  3. Step 3: Cross multiply
    124,969.80x = 187,470.90 × 61,822.20
  4. Step 4: Simplify right side
    124,969.80x = 11,589,863,473.98
  5. Step 5: Solve for x
    x = 11,589,863,473.98/124,969.80
  6. Step 6: Final answer
    x = 92,741.31

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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.