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Finding the Fourth Proportional to 69,455.88, 95,848.38 and 39,242.61

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Solution

The fourth proportional to 69,455.88, 95,848.38 and 39,242.61 is: 54,154.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,455.88 : 95,848.38 = 39,242.61 : x
  2. Step 2: Convert to fraction form
    69,455.88/95,848.38 = 39,242.61/x
  3. Step 3: Cross multiply
    69,455.88x = 95,848.38 × 39,242.61
  4. Step 4: Simplify right side
    69,455.88x = 3,761,340,595.47
  5. Step 5: Solve for x
    x = 3,761,340,595.47/69,455.88
  6. Step 6: Final answer
    x = 54,154.39

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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.