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Finding the Fourth Proportional to 86,797, 119,774.19 and 48,549.90

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Solution

The fourth proportional to 86,797, 119,774.19 and 48,549.90 is: 66,995.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,797 : 119,774.19 = 48,549.90 : x
  2. Step 2: Convert to fraction form
    86,797/119,774.19 = 48,549.90/x
  3. Step 3: Cross multiply
    86,797x = 119,774.19 × 48,549.90
  4. Step 4: Simplify right side
    86,797x = 5,815,024,947.08
  5. Step 5: Solve for x
    x = 5,815,024,947.08/86,797
  6. Step 6: Final answer
    x = 66,995.69

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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.