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Finding the Fourth Proportional to 86,703.82, 119,650.92 and 48,463.33

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Solution

The fourth proportional to 86,703.82, 119,650.92 and 48,463.33 is: 66,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,703.82 : 119,650.92 = 48,463.33 : x
  2. Step 2: Convert to fraction form
    86,703.82/119,650.92 = 48,463.33/x
  3. Step 3: Cross multiply
    86,703.82x = 119,650.92 × 48,463.33
  4. Step 4: Simplify right side
    86,703.82x = 5,798,681,532.07
  5. Step 5: Solve for x
    x = 5,798,681,532.07/86,703.82
  6. Step 6: Final answer
    x = 66,879.20

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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.