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Finding the Fourth Proportional to 79,987.98, 119,850.48 and 27,368.76

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Solution

The fourth proportional to 79,987.98, 119,850.48 and 27,368.76 is: 41,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,987.98 : 119,850.48 = 27,368.76 : x
  2. Step 2: Convert to fraction form
    79,987.98/119,850.48 = 27,368.76/x
  3. Step 3: Cross multiply
    79,987.98x = 119,850.48 × 27,368.76
  4. Step 4: Simplify right side
    79,987.98x = 3,280,159,023.00
  5. Step 5: Solve for x
    x = 3,280,159,023.00/79,987.98
  6. Step 6: Final answer
    x = 41,008.15

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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.