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Finding the Fourth Proportional to 185,649.00, 278,533.48 and 85,874.65

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Solution

The fourth proportional to 185,649.00, 278,533.48 and 85,874.65 is: 128,839.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,649.00 : 278,533.48 = 85,874.65 : x
  2. Step 2: Convert to fraction form
    185,649.00/278,533.48 = 85,874.65/x
  3. Step 3: Cross multiply
    185,649.00x = 278,533.48 × 85,874.65
  4. Step 4: Simplify right side
    185,649.00x = 23,918,964,867.46
  5. Step 5: Solve for x
    x = 23,918,964,867.46/185,649.00
  6. Step 6: Final answer
    x = 128,839.72

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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.