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Finding the Fourth Proportional to 135,963.96, 187,635.55 and 93,033.45

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Solution

The fourth proportional to 135,963.96, 187,635.55 and 93,033.45 is: 128,389.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,963.96 : 187,635.55 = 93,033.45 : x
  2. Step 2: Convert to fraction form
    135,963.96/187,635.55 = 93,033.45/x
  3. Step 3: Cross multiply
    135,963.96x = 187,635.55 × 93,033.45
  4. Step 4: Simplify right side
    135,963.96x = 17,456,382,561.11
  5. Step 5: Solve for x
    x = 17,456,382,561.11/135,963.96
  6. Step 6: Final answer
    x = 128,389.78

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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.