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Finding the Fourth Proportional to 135,275.33, 186,677.50 and 74,845.97

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Solution

The fourth proportional to 135,275.33, 186,677.50 and 74,845.97 is: 103,286.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,275.33 : 186,677.50 = 74,845.97 : x
  2. Step 2: Convert to fraction form
    135,275.33/186,677.50 = 74,845.97/x
  3. Step 3: Cross multiply
    135,275.33x = 186,677.50 × 74,845.97
  4. Step 4: Simplify right side
    135,275.33x = 13,972,058,756.34
  5. Step 5: Solve for x
    x = 13,972,058,756.34/135,275.33
  6. Step 6: Final answer
    x = 103,286.08

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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.