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Finding the Fourth Proportional to 83,357.61, 125,028.65 and 23,391.69

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Solution

The fourth proportional to 83,357.61, 125,028.65 and 23,391.69 is: 35,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,357.61 : 125,028.65 = 23,391.69 : x
  2. Step 2: Convert to fraction form
    83,357.61/125,028.65 = 23,391.69/x
  3. Step 3: Cross multiply
    83,357.61x = 125,028.65 × 23,391.69
  4. Step 4: Simplify right side
    83,357.61x = 2,924,631,480.40
  5. Step 5: Solve for x
    x = 2,924,631,480.40/83,357.61
  6. Step 6: Final answer
    x = 35,085.36

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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.