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Finding the Fourth Proportional to 318,147.93, 439,040.21 and 174,906.72

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Solution

The fourth proportional to 318,147.93, 439,040.21 and 174,906.72 is: 241,369.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,147.93 : 439,040.21 = 174,906.72 : x
  2. Step 2: Convert to fraction form
    318,147.93/439,040.21 = 174,906.72/x
  3. Step 3: Cross multiply
    318,147.93x = 439,040.21 × 174,906.72
  4. Step 4: Simplify right side
    318,147.93x = 76,791,082,204.68
  5. Step 5: Solve for x
    x = 76,791,082,204.68/318,147.93
  6. Step 6: Final answer
    x = 241,369.11

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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.