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Finding the Fourth Proportional to 109,882.20, 164,790.90 and 43,300.20

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Solution

The fourth proportional to 109,882.20, 164,790.90 and 43,300.20 is: 64,937.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,882.20 : 164,790.90 = 43,300.20 : x
  2. Step 2: Convert to fraction form
    109,882.20/164,790.90 = 43,300.20/x
  3. Step 3: Cross multiply
    109,882.20x = 164,790.90 × 43,300.20
  4. Step 4: Simplify right side
    109,882.20x = 7,135,478,928.18
  5. Step 5: Solve for x
    x = 7,135,478,928.18/109,882.20
  6. Step 6: Final answer
    x = 64,937.53

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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.