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Finding the Fourth Proportional to 57,322.59, 85,402.78 and 54,499.38

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Solution

The fourth proportional to 57,322.59, 85,402.78 and 54,499.38 is: 81,196.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,322.59 : 85,402.78 = 54,499.38 : x
  2. Step 2: Convert to fraction form
    57,322.59/85,402.78 = 54,499.38/x
  3. Step 3: Cross multiply
    57,322.59x = 85,402.78 × 54,499.38
  4. Step 4: Simplify right side
    57,322.59x = 4,654,398,737.44
  5. Step 5: Solve for x
    x = 4,654,398,737.44/57,322.59
  6. Step 6: Final answer
    x = 81,196.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.