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Finding the Fourth Proportional to 127,696.56, 176,214.42 and 73,245.96

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Solution

The fourth proportional to 127,696.56, 176,214.42 and 73,245.96 is: 101,075.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,696.56 : 176,214.42 = 73,245.96 : x
  2. Step 2: Convert to fraction form
    127,696.56/176,214.42 = 73,245.96/x
  3. Step 3: Cross multiply
    127,696.56x = 176,214.42 × 73,245.96
  4. Step 4: Simplify right side
    127,696.56x = 12,906,994,358.74
  5. Step 5: Solve for x
    x = 12,906,994,358.74/127,696.56
  6. Step 6: Final answer
    x = 101,075.51

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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.