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Finding the Fourth Proportional to 69,443.61, 95,838.08 and 39,234.48

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Solution

The fourth proportional to 69,443.61, 95,838.08 and 39,234.48 is: 54,146.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,443.61 : 95,838.08 = 39,234.48 : x
  2. Step 2: Convert to fraction form
    69,443.61/95,838.08 = 39,234.48/x
  3. Step 3: Cross multiply
    69,443.61x = 95,838.08 × 39,234.48
  4. Step 4: Simplify right side
    69,443.61x = 3,760,157,036.83
  5. Step 5: Solve for x
    x = 3,760,157,036.83/69,443.61
  6. Step 6: Final answer
    x = 54,146.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.