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Finding the Fourth Proportional to 65,934.69, 91,042.02 and 60,896.90

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Solution

The fourth proportional to 65,934.69, 91,042.02 and 60,896.90 is: 84,085.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,934.69 : 91,042.02 = 60,896.90 : x
  2. Step 2: Convert to fraction form
    65,934.69/91,042.02 = 60,896.90/x
  3. Step 3: Cross multiply
    65,934.69x = 91,042.02 × 60,896.90
  4. Step 4: Simplify right side
    65,934.69x = 5,544,176,787.74
  5. Step 5: Solve for x
    x = 5,544,176,787.74/65,934.69
  6. Step 6: Final answer
    x = 84,085.89

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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.