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Finding the Fourth Proportional to 113,750.20, 170,754.90 and 67,029.40

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Solution

The fourth proportional to 113,750.20, 170,754.90 and 67,029.40 is: 100,620.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,750.20 : 170,754.90 = 67,029.40 : x
  2. Step 2: Convert to fraction form
    113,750.20/170,754.90 = 67,029.40/x
  3. Step 3: Cross multiply
    113,750.20x = 170,754.90 × 67,029.40
  4. Step 4: Simplify right side
    113,750.20x = 11,445,598,494.06
  5. Step 5: Solve for x
    x = 11,445,598,494.06/113,750.20
  6. Step 6: Final answer
    x = 100,620.47

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1.5x scale

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.