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Finding the Fourth Proportional to 127,848.20, 191,801.10 and 75,230.60

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Solution

The fourth proportional to 127,848.20, 191,801.10 and 75,230.60 is: 112,862.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,848.20 : 191,801.10 = 75,230.60 : x
  2. Step 2: Convert to fraction form
    127,848.20/191,801.10 = 75,230.60/x
  3. Step 3: Cross multiply
    127,848.20x = 191,801.10 × 75,230.60
  4. Step 4: Simplify right side
    127,848.20x = 14,429,311,833.66
  5. Step 5: Solve for x
    x = 14,429,311,833.66/127,848.20
  6. Step 6: Final answer
    x = 112,862.85

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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.