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Finding the Fourth Proportional to 57,267.70, 86,131.95 and 51,277.30

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Solution

The fourth proportional to 57,267.70, 86,131.95 and 51,277.30 is: 77,122.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,267.70 : 86,131.95 = 51,277.30 : x
  2. Step 2: Convert to fraction form
    57,267.70/86,131.95 = 51,277.30/x
  3. Step 3: Cross multiply
    57,267.70x = 86,131.95 × 51,277.30
  4. Step 4: Simplify right side
    57,267.70x = 4,416,613,839.74
  5. Step 5: Solve for x
    x = 4,416,613,839.74/57,267.70
  6. Step 6: Final answer
    x = 77,122.25

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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.