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Finding the Fourth Proportional to 162,759.20, 244,138.80 and 161,722.40

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Solution

The fourth proportional to 162,759.20, 244,138.80 and 161,722.40 is: 242,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,759.20 : 244,138.80 = 161,722.40 : x
  2. Step 2: Convert to fraction form
    162,759.20/244,138.80 = 161,722.40/x
  3. Step 3: Cross multiply
    162,759.20x = 244,138.80 × 161,722.40
  4. Step 4: Simplify right side
    162,759.20x = 39,482,712,669.12
  5. Step 5: Solve for x
    x = 39,482,712,669.12/162,759.20
  6. Step 6: Final answer
    x = 242,583.60

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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.