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Finding the Fourth Proportional to 124,510.40, 186,789.90 and 49,617.80

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Solution

The fourth proportional to 124,510.40, 186,789.90 and 49,617.80 is: 74,436.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,510.40 : 186,789.90 = 49,617.80 : x
  2. Step 2: Convert to fraction form
    124,510.40/186,789.90 = 49,617.80/x
  3. Step 3: Cross multiply
    124,510.40x = 186,789.90 × 49,617.80
  4. Step 4: Simplify right side
    124,510.40x = 9,268,103,900.22
  5. Step 5: Solve for x
    x = 9,268,103,900.22/124,510.40
  6. Step 6: Final answer
    x = 74,436.38

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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.