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Finding the Fourth Proportional to 73,072.70, 109,601.93 and 49,531.52

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Solution

The fourth proportional to 73,072.70, 109,601.93 and 49,531.52 is: 74,292.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,072.70 : 109,601.93 = 49,531.52 : x
  2. Step 2: Convert to fraction form
    73,072.70/109,601.93 = 49,531.52/x
  3. Step 3: Cross multiply
    73,072.70x = 109,601.93 × 49,531.52
  4. Step 4: Simplify right side
    73,072.70x = 5,428,750,585.67
  5. Step 5: Solve for x
    x = 5,428,750,585.67/73,072.70
  6. Step 6: Final answer
    x = 74,292.46

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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.