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Finding the Fourth Proportional to 220,132.40, 330,198.60 and 114,926.90

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Solution

The fourth proportional to 220,132.40, 330,198.60 and 114,926.90 is: 172,390.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,132.40 : 330,198.60 = 114,926.90 : x
  2. Step 2: Convert to fraction form
    220,132.40/330,198.60 = 114,926.90/x
  3. Step 3: Cross multiply
    220,132.40x = 330,198.60 × 114,926.90
  4. Step 4: Simplify right side
    220,132.40x = 37,948,701,482.34
  5. Step 5: Solve for x
    x = 37,948,701,482.34/220,132.40
  6. Step 6: Final answer
    x = 172,390.35

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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.