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Finding the Fourth Proportional to 162,616.40, 243,851.70 and 73,824.20

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Solution

The fourth proportional to 162,616.40, 243,851.70 and 73,824.20 is: 110,703.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,616.40 : 243,851.70 = 73,824.20 : x
  2. Step 2: Convert to fraction form
    162,616.40/243,851.70 = 73,824.20/x
  3. Step 3: Cross multiply
    162,616.40x = 243,851.70 × 73,824.20
  4. Step 4: Simplify right side
    162,616.40x = 18,002,156,671.14
  5. Step 5: Solve for x
    x = 18,002,156,671.14/162,616.40
  6. Step 6: Final answer
    x = 110,703.21

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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.