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Finding the Fourth Proportional to 69,092.40, 103,640.28 and 51,672.84

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Solution

The fourth proportional to 69,092.40, 103,640.28 and 51,672.84 is: 77,510.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,092.40 : 103,640.28 = 51,672.84 : x
  2. Step 2: Convert to fraction form
    69,092.40/103,640.28 = 51,672.84/x
  3. Step 3: Cross multiply
    69,092.40x = 103,640.28 × 51,672.84
  4. Step 4: Simplify right side
    69,092.40x = 5,355,387,606.00
  5. Step 5: Solve for x
    x = 5,355,387,606.00/69,092.40
  6. Step 6: Final answer
    x = 77,510.52

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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.