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Finding the Fourth Proportional to 173,878.60, 261,012.30 and 134,609.80

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Solution

The fourth proportional to 173,878.60, 261,012.30 and 134,609.80 is: 202,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,878.60 : 261,012.30 = 134,609.80 : x
  2. Step 2: Convert to fraction form
    173,878.60/261,012.30 = 134,609.80/x
  3. Step 3: Cross multiply
    173,878.60x = 261,012.30 × 134,609.80
  4. Step 4: Simplify right side
    173,878.60x = 35,134,813,500.54
  5. Step 5: Solve for x
    x = 35,134,813,500.54/173,878.60
  6. Step 6: Final answer
    x = 202,065.20

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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.