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Finding the Fourth Proportional to 127,773.22, 176,233.44 and 84,674.74

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Solution

The fourth proportional to 127,773.22, 176,233.44 and 84,674.74 is: 116,789.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,773.22 : 176,233.44 = 84,674.74 : x
  2. Step 2: Convert to fraction form
    127,773.22/176,233.44 = 84,674.74/x
  3. Step 3: Cross multiply
    127,773.22x = 176,233.44 × 84,674.74
  4. Step 4: Simplify right side
    127,773.22x = 14,922,520,711.31
  5. Step 5: Solve for x
    x = 14,922,520,711.31/127,773.22
  6. Step 6: Final answer
    x = 116,789.11

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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.