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Finding the Fourth Proportional to 86,570.90, 119,473.87 and 48,337.96

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Solution

The fourth proportional to 86,570.90, 119,473.87 and 48,337.96 is: 66,709.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,570.90 : 119,473.87 = 48,337.96 : x
  2. Step 2: Convert to fraction form
    86,570.90/119,473.87 = 48,337.96/x
  3. Step 3: Cross multiply
    86,570.90x = 119,473.87 × 48,337.96
  4. Step 4: Simplify right side
    86,570.90x = 5,775,123,149.11
  5. Step 5: Solve for x
    x = 5,775,123,149.11/86,570.90
  6. Step 6: Final answer
    x = 66,709.75

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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.