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Finding the Fourth Proportional to 109,062.76, 163,593.92 and 30,176.76

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Solution

The fourth proportional to 109,062.76, 163,593.92 and 30,176.76 is: 45,265.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,062.76 : 163,593.92 = 30,176.76 : x
  2. Step 2: Convert to fraction form
    109,062.76/163,593.92 = 30,176.76/x
  3. Step 3: Cross multiply
    109,062.76x = 163,593.92 × 30,176.76
  4. Step 4: Simplify right side
    109,062.76x = 4,936,734,461.30
  5. Step 5: Solve for x
    x = 4,936,734,461.30/109,062.76
  6. Step 6: Final answer
    x = 45,265.08

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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.