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Finding the Fourth Proportional to 127,350.52, 175,670.52 and 79,520.84

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Solution

The fourth proportional to 127,350.52, 175,670.52 and 79,520.84 is: 109,693.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,350.52 : 175,670.52 = 79,520.84 : x
  2. Step 2: Convert to fraction form
    127,350.52/175,670.52 = 79,520.84/x
  3. Step 3: Cross multiply
    127,350.52x = 175,670.52 × 79,520.84
  4. Step 4: Simplify right side
    127,350.52x = 13,969,467,313.64
  5. Step 5: Solve for x
    x = 13,969,467,313.64/127,350.52
  6. Step 6: Final answer
    x = 109,693.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.