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Finding the Fourth Proportional to 52,750.30, 79,119.99 and 27,780.22

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Solution

The fourth proportional to 52,750.30, 79,119.99 and 27,780.22 is: 41,667.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,750.30 : 79,119.99 = 27,780.22 : x
  2. Step 2: Convert to fraction form
    52,750.30/79,119.99 = 27,780.22/x
  3. Step 3: Cross multiply
    52,750.30x = 79,119.99 × 27,780.22
  4. Step 4: Simplify right side
    52,750.30x = 2,197,970,728.60
  5. Step 5: Solve for x
    x = 2,197,970,728.60/52,750.30
  6. Step 6: Final answer
    x = 41,667.45

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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.