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Finding the Fourth Proportional to 86,456.64, 119,309.92 and 48,216.22

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Solution

The fourth proportional to 86,456.64, 119,309.92 and 48,216.22 is: 66,538.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,456.64 : 119,309.92 = 48,216.22 : x
  2. Step 2: Convert to fraction form
    86,456.64/119,309.92 = 48,216.22/x
  3. Step 3: Cross multiply
    86,456.64x = 119,309.92 × 48,216.22
  4. Step 4: Simplify right side
    86,456.64x = 5,752,673,350.90
  5. Step 5: Solve for x
    x = 5,752,673,350.90/86,456.64
  6. Step 6: Final answer
    x = 66,538.25

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1.5x scale

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.