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Finding the Fourth Proportional to 127,598.64, 176,078.62 and 73,879.84

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Solution

The fourth proportional to 127,598.64, 176,078.62 and 73,879.84 is: 101,949.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,598.64 : 176,078.62 = 73,879.84 : x
  2. Step 2: Convert to fraction form
    127,598.64/176,078.62 = 73,879.84/x
  3. Step 3: Cross multiply
    127,598.64x = 176,078.62 × 73,879.84
  4. Step 4: Simplify right side
    127,598.64x = 13,008,660,273.02
  5. Step 5: Solve for x
    x = 13,008,660,273.02/127,598.64
  6. Step 6: Final answer
    x = 101,949.83

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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.