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Finding the Fourth Proportional to 230,672.48, 317,855.60 and 170,147.20

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Solution

The fourth proportional to 230,672.48, 317,855.60 and 170,147.20 is: 234,454.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,672.48 : 317,855.60 = 170,147.20 : x
  2. Step 2: Convert to fraction form
    230,672.48/317,855.60 = 170,147.20/x
  3. Step 3: Cross multiply
    230,672.48x = 317,855.60 × 170,147.20
  4. Step 4: Simplify right side
    230,672.48x = 54,082,240,344.32
  5. Step 5: Solve for x
    x = 54,082,240,344.32/230,672.48
  6. Step 6: Final answer
    x = 234,454.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.