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Finding the Fourth Proportional to 113,952.80, 170,597 and 66,422.48

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Solution

The fourth proportional to 113,952.80, 170,597 and 66,422.48 is: 99,440.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,952.80 : 170,597 = 66,422.48 : x
  2. Step 2: Convert to fraction form
    113,952.80/170,597 = 66,422.48/x
  3. Step 3: Cross multiply
    113,952.80x = 170,597 × 66,422.48
  4. Step 4: Simplify right side
    113,952.80x = 11,331,475,820.56
  5. Step 5: Solve for x
    x = 11,331,475,820.56/113,952.80
  6. Step 6: Final answer
    x = 99,440.08

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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.