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Finding the Fourth Proportional to 185,887.90, 278,834.28 and 73,519.84

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Solution

The fourth proportional to 185,887.90, 278,834.28 and 73,519.84 is: 110,280.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,887.90 : 278,834.28 = 73,519.84 : x
  2. Step 2: Convert to fraction form
    185,887.90/278,834.28 = 73,519.84/x
  3. Step 3: Cross multiply
    185,887.90x = 278,834.28 × 73,519.84
  4. Step 4: Simplify right side
    185,887.90x = 20,499,851,652.12
  5. Step 5: Solve for x
    x = 20,499,851,652.12/185,887.90
  6. Step 6: Final answer
    x = 110,280.72

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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.