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Finding the Fourth Proportional to 86,992.65, 120,058.20 and 48,752.01

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Solution

The fourth proportional to 86,992.65, 120,058.20 and 48,752.01 is: 67,282.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,992.65 : 120,058.20 = 48,752.01 : x
  2. Step 2: Convert to fraction form
    86,992.65/120,058.20 = 48,752.01/x
  3. Step 3: Cross multiply
    86,992.65x = 120,058.20 × 48,752.01
  4. Step 4: Simplify right side
    86,992.65x = 5,853,078,566.98
  5. Step 5: Solve for x
    x = 5,853,078,566.98/86,992.65
  6. Step 6: Final answer
    x = 67,282.45

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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.