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Finding the Fourth Proportional to 86,994.63, 120,062.25 and 48,760.47

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Solution

The fourth proportional to 86,994.63, 120,062.25 and 48,760.47 is: 67,294.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,994.63 : 120,062.25 = 48,760.47 : x
  2. Step 2: Convert to fraction form
    86,994.63/120,062.25 = 48,760.47/x
  3. Step 3: Cross multiply
    86,994.63x = 120,062.25 × 48,760.47
  4. Step 4: Simplify right side
    86,994.63x = 5,854,291,739.26
  5. Step 5: Solve for x
    x = 5,854,291,739.26/86,994.63
  6. Step 6: Final answer
    x = 67,294.86

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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.