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Finding the Fourth Proportional to 113,189.70, 169,754.18 and 53,907.42

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Solution

The fourth proportional to 113,189.70, 169,754.18 and 53,907.42 is: 80,846.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,189.70 : 169,754.18 = 53,907.42 : x
  2. Step 2: Convert to fraction form
    113,189.70/169,754.18 = 53,907.42/x
  3. Step 3: Cross multiply
    113,189.70x = 169,754.18 × 53,907.42
  4. Step 4: Simplify right side
    113,189.70x = 9,151,010,245.06
  5. Step 5: Solve for x
    x = 9,151,010,245.06/113,189.70
  6. Step 6: Final answer
    x = 80,846.67

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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.