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Finding the Fourth Proportional to 105,753.88, 158,630.82 and 61,688.26

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Solution

The fourth proportional to 105,753.88, 158,630.82 and 61,688.26 is: 92,532.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,753.88 : 158,630.82 = 61,688.26 : x
  2. Step 2: Convert to fraction form
    105,753.88/158,630.82 = 61,688.26/x
  3. Step 3: Cross multiply
    105,753.88x = 158,630.82 × 61,688.26
  4. Step 4: Simplify right side
    105,753.88x = 9,785,659,268.17
  5. Step 5: Solve for x
    x = 9,785,659,268.17/105,753.88
  6. Step 6: Final answer
    x = 92,532.39

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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.