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Finding the Fourth Proportional to 92,253.56, 138,424.08 and 54,887.45

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Solution

The fourth proportional to 92,253.56, 138,424.08 and 54,887.45 is: 82,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,253.56 : 138,424.08 = 54,887.45 : x
  2. Step 2: Convert to fraction form
    92,253.56/138,424.08 = 54,887.45/x
  3. Step 3: Cross multiply
    92,253.56x = 138,424.08 × 54,887.45
  4. Step 4: Simplify right side
    92,253.56x = 7,597,744,769.80
  5. Step 5: Solve for x
    x = 7,597,744,769.80/92,253.56
  6. Step 6: Final answer
    x = 82,357.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.