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Finding the Fourth Proportional to 96,909.70, 133,788.33 and 58,675.78

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Solution

The fourth proportional to 96,909.70, 133,788.33 and 58,675.78 is: 81,004.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,909.70 : 133,788.33 = 58,675.78 : x
  2. Step 2: Convert to fraction form
    96,909.70/133,788.33 = 58,675.78/x
  3. Step 3: Cross multiply
    96,909.70x = 133,788.33 × 58,675.78
  4. Step 4: Simplify right side
    96,909.70x = 7,850,134,617.65
  5. Step 5: Solve for x
    x = 7,850,134,617.65/96,909.70
  6. Step 6: Final answer
    x = 81,004.63

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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.