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Finding the Fourth Proportional to 173,148.20, 259,722.30 and 137,718.80

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Solution

The fourth proportional to 173,148.20, 259,722.30 and 137,718.80 is: 206,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,148.20 : 259,722.30 = 137,718.80 : x
  2. Step 2: Convert to fraction form
    173,148.20/259,722.30 = 137,718.80/x
  3. Step 3: Cross multiply
    173,148.20x = 259,722.30 × 137,718.80
  4. Step 4: Simplify right side
    173,148.20x = 35,768,643,489.24
  5. Step 5: Solve for x
    x = 35,768,643,489.24/173,148.20
  6. Step 6: Final answer
    x = 206,578.20

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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.