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Finding the Fourth Proportional to 162,938.80, 244,408.20 and 100,644.40

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Solution

The fourth proportional to 162,938.80, 244,408.20 and 100,644.40 is: 150,966.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,938.80 : 244,408.20 = 100,644.40 : x
  2. Step 2: Convert to fraction form
    162,938.80/244,408.20 = 100,644.40/x
  3. Step 3: Cross multiply
    162,938.80x = 244,408.20 × 100,644.40
  4. Step 4: Simplify right side
    162,938.80x = 24,598,316,644.08
  5. Step 5: Solve for x
    x = 24,598,316,644.08/162,938.80
  6. Step 6: Final answer
    x = 150,966.60

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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.