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Finding the Fourth Proportional to 162,761.20, 244,141.80 and 161,724.40

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Solution

The fourth proportional to 162,761.20, 244,141.80 and 161,724.40 is: 242,586.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,761.20 : 244,141.80 = 161,724.40 : x
  2. Step 2: Convert to fraction form
    162,761.20/244,141.80 = 161,724.40/x
  3. Step 3: Cross multiply
    162,761.20x = 244,141.80 × 161,724.40
  4. Step 4: Simplify right side
    162,761.20x = 39,483,686,119.92
  5. Step 5: Solve for x
    x = 39,483,686,119.92/162,761.20
  6. Step 6: Final answer
    x = 242,586.60

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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.