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Finding the Fourth Proportional to 127,863.60, 191,633.40 and 48,872.40

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Solution

The fourth proportional to 127,863.60, 191,633.40 and 48,872.40 is: 73,246.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,863.60 : 191,633.40 = 48,872.40 : x
  2. Step 2: Convert to fraction form
    127,863.60/191,633.40 = 48,872.40/x
  3. Step 3: Cross multiply
    127,863.60x = 191,633.40 × 48,872.40
  4. Step 4: Simplify right side
    127,863.60x = 9,365,584,178.16
  5. Step 5: Solve for x
    x = 9,365,584,178.16/127,863.60
  6. Step 6: Final answer
    x = 73,246.68

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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.