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Finding the Fourth Proportional to 135,963.66, 187,635.14 and 93,033.15

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Solution

The fourth proportional to 135,963.66, 187,635.14 and 93,033.15 is: 128,389.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,963.66 : 187,635.14 = 93,033.15 : x
  2. Step 2: Convert to fraction form
    135,963.66/187,635.14 = 93,033.15/x
  3. Step 3: Cross multiply
    135,963.66x = 187,635.14 × 93,033.15
  4. Step 4: Simplify right side
    135,963.66x = 17,456,287,659.73
  5. Step 5: Solve for x
    x = 17,456,287,659.73/135,963.66
  6. Step 6: Final answer
    x = 128,389.36

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1.5x scale

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.