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Finding the Fourth Proportional to 161,906.30, 242,859.45 and 98,920.70

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Solution

The fourth proportional to 161,906.30, 242,859.45 and 98,920.70 is: 148,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,906.30 : 242,859.45 = 98,920.70 : x
  2. Step 2: Convert to fraction form
    161,906.30/242,859.45 = 98,920.70/x
  3. Step 3: Cross multiply
    161,906.30x = 242,859.45 × 98,920.70
  4. Step 4: Simplify right side
    161,906.30x = 24,023,826,795.62
  5. Step 5: Solve for x
    x = 24,023,826,795.62/161,906.30
  6. Step 6: Final answer
    x = 148,381.05

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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.