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Finding the Fourth Proportional to 127,751.52, 191,650.38 and 52,830.99

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Solution

The fourth proportional to 127,751.52, 191,650.38 and 52,830.99 is: 79,256.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,751.52 : 191,650.38 = 52,830.99 : x
  2. Step 2: Convert to fraction form
    127,751.52/191,650.38 = 52,830.99/x
  3. Step 3: Cross multiply
    127,751.52x = 191,650.38 × 52,830.99
  4. Step 4: Simplify right side
    127,751.52x = 10,125,079,309.28
  5. Step 5: Solve for x
    x = 10,125,079,309.28/127,751.52
  6. Step 6: Final answer
    x = 79,256.04

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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.