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Finding the Fourth Proportional to 57,060.68, 85,603.96 and 30,764.84

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Solution

The fourth proportional to 57,060.68, 85,603.96 and 30,764.84 is: 46,154.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,060.68 : 85,603.96 = 30,764.84 : x
  2. Step 2: Convert to fraction form
    57,060.68/85,603.96 = 30,764.84/x
  3. Step 3: Cross multiply
    57,060.68x = 85,603.96 × 30,764.84
  4. Step 4: Simplify right side
    57,060.68x = 2,633,592,132.77
  5. Step 5: Solve for x
    x = 2,633,592,132.77/57,060.68
  6. Step 6: Final answer
    x = 46,154.24

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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.