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Finding the Fourth Proportional to 127,278.60, 175,604.96 and 73,544.01

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Solution

The fourth proportional to 127,278.60, 175,604.96 and 73,544.01 is: 101,467.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,278.60 : 175,604.96 = 73,544.01 : x
  2. Step 2: Convert to fraction form
    127,278.60/175,604.96 = 73,544.01/x
  3. Step 3: Cross multiply
    127,278.60x = 175,604.96 × 73,544.01
  4. Step 4: Simplify right side
    127,278.60x = 12,914,692,566.57
  5. Step 5: Solve for x
    x = 12,914,692,566.57/127,278.60
  6. Step 6: Final answer
    x = 101,467.90

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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.