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Finding the Fourth Proportional to 318,233.67, 439,146.14 and 174,990.03

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Solution

The fourth proportional to 318,233.67, 439,146.14 and 174,990.03 is: 241,477.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,233.67 : 439,146.14 = 174,990.03 : x
  2. Step 2: Convert to fraction form
    318,233.67/439,146.14 = 174,990.03/x
  3. Step 3: Cross multiply
    318,233.67x = 439,146.14 × 174,990.03
  4. Step 4: Simplify right side
    318,233.67x = 76,846,195,338.03
  5. Step 5: Solve for x
    x = 76,846,195,338.03/318,233.67
  6. Step 6: Final answer
    x = 241,477.26

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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.