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Finding the Fourth Proportional to 76,659.93, 115,008.39 and 24,069.40

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Solution

The fourth proportional to 76,659.93, 115,008.39 and 24,069.40 is: 36,109.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,659.93 : 115,008.39 = 24,069.40 : x
  2. Step 2: Convert to fraction form
    76,659.93/115,008.39 = 24,069.40/x
  3. Step 3: Cross multiply
    76,659.93x = 115,008.39 × 24,069.40
  4. Step 4: Simplify right side
    76,659.93x = 2,768,182,654.75
  5. Step 5: Solve for x
    x = 2,768,182,654.75/76,659.93
  6. Step 6: Final answer
    x = 36,109.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.