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Finding the Fourth Proportional to 175,278.80, 262,615.80 and 81,592.40

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Solution

The fourth proportional to 175,278.80, 262,615.80 and 81,592.40 is: 122,247.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,278.80 : 262,615.80 = 81,592.40 : x
  2. Step 2: Convert to fraction form
    175,278.80/262,615.80 = 81,592.40/x
  3. Step 3: Cross multiply
    175,278.80x = 262,615.80 × 81,592.40
  4. Step 4: Simplify right side
    175,278.80x = 21,427,453,399.92
  5. Step 5: Solve for x
    x = 21,427,453,399.92/175,278.80
  6. Step 6: Final answer
    x = 122,247.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.