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Finding the Fourth Proportional to 83,235.97, 124,632.53 and 65,042.87

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Solution

The fourth proportional to 83,235.97, 124,632.53 and 65,042.87 is: 97,391.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,235.97 : 124,632.53 = 65,042.87 : x
  2. Step 2: Convert to fraction form
    83,235.97/124,632.53 = 65,042.87/x
  3. Step 3: Cross multiply
    83,235.97x = 124,632.53 × 65,042.87
  4. Step 4: Simplify right side
    83,235.97x = 8,106,457,121.35
  5. Step 5: Solve for x
    x = 8,106,457,121.35/83,235.97
  6. Step 6: Final answer
    x = 97,391.28

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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.