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Finding the Fourth Proportional to 124,617.40, 186,950.40 and 49,724.80

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Solution

The fourth proportional to 124,617.40, 186,950.40 and 49,724.80 is: 74,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,617.40 : 186,950.40 = 49,724.80 : x
  2. Step 2: Convert to fraction form
    124,617.40/186,950.40 = 49,724.80/x
  3. Step 3: Cross multiply
    124,617.40x = 186,950.40 × 49,724.80
  4. Step 4: Simplify right side
    124,617.40x = 9,296,071,249.92
  5. Step 5: Solve for x
    x = 9,296,071,249.92/124,617.40
  6. Step 6: Final answer
    x = 74,596.90

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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.