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Finding the Fourth Proportional to 161,711.20, 242,566.80 and 160,674.40

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Solution

The fourth proportional to 161,711.20, 242,566.80 and 160,674.40 is: 241,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,711.20 : 242,566.80 = 160,674.40 : x
  2. Step 2: Convert to fraction form
    161,711.20/242,566.80 = 160,674.40/x
  3. Step 3: Cross multiply
    161,711.20x = 242,566.80 × 160,674.40
  4. Step 4: Simplify right side
    161,711.20x = 38,974,275,049.92
  5. Step 5: Solve for x
    x = 38,974,275,049.92/161,711.20
  6. Step 6: Final answer
    x = 241,011.60

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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.