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Finding the Fourth Proportional to 121,341.80, 182,012.70 and 110,844.20

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Solution

The fourth proportional to 121,341.80, 182,012.70 and 110,844.20 is: 166,266.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,341.80 : 182,012.70 = 110,844.20 : x
  2. Step 2: Convert to fraction form
    121,341.80/182,012.70 = 110,844.20/x
  3. Step 3: Cross multiply
    121,341.80x = 182,012.70 × 110,844.20
  4. Step 4: Simplify right side
    121,341.80x = 20,175,052,121.34
  5. Step 5: Solve for x
    x = 20,175,052,121.34/121,341.80
  6. Step 6: Final answer
    x = 166,266.30

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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.