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Finding the Fourth Proportional to 124,562.88, 186,729.20 and 49,664.81

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Solution

The fourth proportional to 124,562.88, 186,729.20 and 49,664.81 is: 74,451.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,562.88 : 186,729.20 = 49,664.81 : x
  2. Step 2: Convert to fraction form
    124,562.88/186,729.20 = 49,664.81/x
  3. Step 3: Cross multiply
    124,562.88x = 186,729.20 × 49,664.81
  4. Step 4: Simplify right side
    124,562.88x = 9,273,870,644.19
  5. Step 5: Solve for x
    x = 9,273,870,644.19/124,562.88
  6. Step 6: Final answer
    x = 74,451.32

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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.