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Finding the Fourth Proportional to 115,010.67, 172,545.30 and 43,933.17

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Solution

The fourth proportional to 115,010.67, 172,545.30 and 43,933.17 is: 65,910.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,010.67 : 172,545.30 = 43,933.17 : x
  2. Step 2: Convert to fraction form
    115,010.67/172,545.30 = 43,933.17/x
  3. Step 3: Cross multiply
    115,010.67x = 172,545.30 × 43,933.17
  4. Step 4: Simplify right side
    115,010.67x = 7,580,461,997.60
  5. Step 5: Solve for x
    x = 7,580,461,997.60/115,010.67
  6. Step 6: Final answer
    x = 65,910.95

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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.