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Finding the Fourth Proportional to 318,162.71, 439,067.49 and 174,923.75

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Solution

The fourth proportional to 318,162.71, 439,067.49 and 174,923.75 is: 241,396.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,162.71 : 439,067.49 = 174,923.75 : x
  2. Step 2: Convert to fraction form
    318,162.71/439,067.49 = 174,923.75/x
  3. Step 3: Cross multiply
    318,162.71x = 439,067.49 × 174,923.75
  4. Step 4: Simplify right side
    318,162.71x = 76,803,331,853.89
  5. Step 5: Solve for x
    x = 76,803,331,853.89/318,162.71
  6. Step 6: Final answer
    x = 241,396.40

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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.