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Finding the Fourth Proportional to 231,632.80, 347,449.20 and 113,534.80

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Solution

The fourth proportional to 231,632.80, 347,449.20 and 113,534.80 is: 170,302.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,632.80 : 347,449.20 = 113,534.80 : x
  2. Step 2: Convert to fraction form
    231,632.80/347,449.20 = 113,534.80/x
  3. Step 3: Cross multiply
    231,632.80x = 347,449.20 × 113,534.80
  4. Step 4: Simplify right side
    231,632.80x = 39,447,575,432.16
  5. Step 5: Solve for x
    x = 39,447,575,432.16/231,632.80
  6. Step 6: Final answer
    x = 170,302.20

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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.