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Finding the Fourth Proportional to 95,780.66, 143,693.50 and 29,220.80

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Solution

The fourth proportional to 95,780.66, 143,693.50 and 29,220.80 is: 43,838.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,780.66 : 143,693.50 = 29,220.80 : x
  2. Step 2: Convert to fraction form
    95,780.66/143,693.50 = 29,220.80/x
  3. Step 3: Cross multiply
    95,780.66x = 143,693.50 × 29,220.80
  4. Step 4: Simplify right side
    95,780.66x = 4,198,839,024.80
  5. Step 5: Solve for x
    x = 4,198,839,024.80/95,780.66
  6. Step 6: Final answer
    x = 43,838.07

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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.