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Finding the Fourth Proportional to 113,437.70, 170,221.35 and 43,367.30

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Solution

The fourth proportional to 113,437.70, 170,221.35 and 43,367.30 is: 65,075.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,437.70 : 170,221.35 = 43,367.30 : x
  2. Step 2: Convert to fraction form
    113,437.70/170,221.35 = 43,367.30/x
  3. Step 3: Cross multiply
    113,437.70x = 170,221.35 × 43,367.30
  4. Step 4: Simplify right side
    113,437.70x = 7,382,040,351.86
  5. Step 5: Solve for x
    x = 7,382,040,351.86/113,437.70
  6. Step 6: Final answer
    x = 65,075.72

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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.