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Finding the Fourth Proportional to 75,308.32, 103,917.76 and 45,092.89

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Solution

The fourth proportional to 75,308.32, 103,917.76 and 45,092.89 is: 62,223.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,308.32 : 103,917.76 = 45,092.89 : x
  2. Step 2: Convert to fraction form
    75,308.32/103,917.76 = 45,092.89/x
  3. Step 3: Cross multiply
    75,308.32x = 103,917.76 × 45,092.89
  4. Step 4: Simplify right side
    75,308.32x = 4,685,952,120.73
  5. Step 5: Solve for x
    x = 4,685,952,120.73/75,308.32
  6. Step 6: Final answer
    x = 62,223.56

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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.