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Finding the Fourth Proportional to 229,761.65, 344,642.60 and 72,002.45

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Solution

The fourth proportional to 229,761.65, 344,642.60 and 72,002.45 is: 108,003.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,761.65 : 344,642.60 = 72,002.45 : x
  2. Step 2: Convert to fraction form
    229,761.65/344,642.60 = 72,002.45/x
  3. Step 3: Cross multiply
    229,761.65x = 344,642.60 × 72,002.45
  4. Step 4: Simplify right side
    229,761.65x = 24,815,111,574.37
  5. Step 5: Solve for x
    x = 24,815,111,574.37/229,761.65
  6. Step 6: Final answer
    x = 108,003.71

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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.