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Finding the Fourth Proportional to 220,112.10, 330,168.15 and 194,742.90

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Solution

The fourth proportional to 220,112.10, 330,168.15 and 194,742.90 is: 292,114.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,112.10 : 330,168.15 = 194,742.90 : x
  2. Step 2: Convert to fraction form
    220,112.10/330,168.15 = 194,742.90/x
  3. Step 3: Cross multiply
    220,112.10x = 330,168.15 × 194,742.90
  4. Step 4: Simplify right side
    220,112.10x = 64,297,903,018.64
  5. Step 5: Solve for x
    x = 64,297,903,018.64/220,112.10
  6. Step 6: Final answer
    x = 292,114.35

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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.