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Finding the Fourth Proportional to 162,796.60, 243,903.30 and 100,394.20

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Solution

The fourth proportional to 162,796.60, 243,903.30 and 100,394.20 is: 150,411.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,796.60 : 243,903.30 = 100,394.20 : x
  2. Step 2: Convert to fraction form
    162,796.60/243,903.30 = 100,394.20/x
  3. Step 3: Cross multiply
    162,796.60x = 243,903.30 × 100,394.20
  4. Step 4: Simplify right side
    162,796.60x = 24,486,476,680.86
  5. Step 5: Solve for x
    x = 24,486,476,680.86/162,796.60
  6. Step 6: Final answer
    x = 150,411.47

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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.