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Finding the Fourth Proportional to 135,052.48, 186,372.96 and 75,436.48

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Solution

The fourth proportional to 135,052.48, 186,372.96 and 75,436.48 is: 104,102.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,052.48 : 186,372.96 = 75,436.48 : x
  2. Step 2: Convert to fraction form
    135,052.48/186,372.96 = 75,436.48/x
  3. Step 3: Cross multiply
    135,052.48x = 186,372.96 × 75,436.48
  4. Step 4: Simplify right side
    135,052.48x = 14,059,320,069.58
  5. Step 5: Solve for x
    x = 14,059,320,069.58/135,052.48
  6. Step 6: Final answer
    x = 104,102.64

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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.