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Finding the Fourth Proportional to 106,820.40, 160,230.60 and 50,660.40

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Solution

The fourth proportional to 106,820.40, 160,230.60 and 50,660.40 is: 75,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,820.40 : 160,230.60 = 50,660.40 : x
  2. Step 2: Convert to fraction form
    106,820.40/160,230.60 = 50,660.40/x
  3. Step 3: Cross multiply
    106,820.40x = 160,230.60 × 50,660.40
  4. Step 4: Simplify right side
    106,820.40x = 8,117,346,288.24
  5. Step 5: Solve for x
    x = 8,117,346,288.24/106,820.40
  6. Step 6: Final answer
    x = 75,990.60

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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.