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Finding the Fourth Proportional to 135,957.95, 187,618.61 and 75,528.74

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Solution

The fourth proportional to 135,957.95, 187,618.61 and 75,528.74 is: 104,227.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,957.95 : 187,618.61 = 75,528.74 : x
  2. Step 2: Convert to fraction form
    135,957.95/187,618.61 = 75,528.74/x
  3. Step 3: Cross multiply
    135,957.95x = 187,618.61 × 75,528.74
  4. Step 4: Simplify right side
    135,957.95x = 14,170,597,305.25
  5. Step 5: Solve for x
    x = 14,170,597,305.25/135,957.95
  6. Step 6: Final answer
    x = 104,227.79

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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.