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Finding the Fourth Proportional to 86,773.75, 119,747.78 and 47,029.75

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Solution

The fourth proportional to 86,773.75, 119,747.78 and 47,029.75 is: 64,901.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,773.75 : 119,747.78 = 47,029.75 : x
  2. Step 2: Convert to fraction form
    86,773.75/119,747.78 = 47,029.75/x
  3. Step 3: Cross multiply
    86,773.75x = 119,747.78 × 47,029.75
  4. Step 4: Simplify right side
    86,773.75x = 5,631,708,156.46
  5. Step 5: Solve for x
    x = 5,631,708,156.46/86,773.75
  6. Step 6: Final answer
    x = 64,901.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.