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Finding the Fourth Proportional to 147,847.16, 221,508.02 and 84,664.76

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Solution

The fourth proportional to 147,847.16, 221,508.02 and 84,664.76 is: 126,846.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,847.16 : 221,508.02 = 84,664.76 : x
  2. Step 2: Convert to fraction form
    147,847.16/221,508.02 = 84,664.76/x
  3. Step 3: Cross multiply
    147,847.16x = 221,508.02 × 84,664.76
  4. Step 4: Simplify right side
    147,847.16x = 18,753,923,351.38
  5. Step 5: Solve for x
    x = 18,753,923,351.38/147,847.16
  6. Step 6: Final answer
    x = 126,846.69

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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.