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Finding the Fourth Proportional to 57,322.75, 85,925.79 and 53,079.97

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Solution

The fourth proportional to 57,322.75, 85,925.79 and 53,079.97 is: 79,565.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,322.75 : 85,925.79 = 53,079.97 : x
  2. Step 2: Convert to fraction form
    57,322.75/85,925.79 = 53,079.97/x
  3. Step 3: Cross multiply
    57,322.75x = 85,925.79 × 53,079.97
  4. Step 4: Simplify right side
    57,322.75x = 4,560,938,355.43
  5. Step 5: Solve for x
    x = 4,560,938,355.43/57,322.75
  6. Step 6: Final answer
    x = 79,565.94

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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.