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Finding the Fourth Proportional to 57,270.88, 85,947.95 and 43,248.25

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Solution

The fourth proportional to 57,270.88, 85,947.95 and 43,248.25 is: 64,903.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,270.88 : 85,947.95 = 43,248.25 : x
  2. Step 2: Convert to fraction form
    57,270.88/85,947.95 = 43,248.25/x
  3. Step 3: Cross multiply
    57,270.88x = 85,947.95 × 43,248.25
  4. Step 4: Simplify right side
    57,270.88x = 3,717,098,428.59
  5. Step 5: Solve for x
    x = 3,717,098,428.59/57,270.88
  6. Step 6: Final answer
    x = 64,903.81

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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.