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Finding the Fourth Proportional to 147,990.82, 221,706.48 and 73,023.20

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Solution

The fourth proportional to 147,990.82, 221,706.48 and 73,023.20 is: 109,396.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,990.82 : 221,706.48 = 73,023.20 : x
  2. Step 2: Convert to fraction form
    147,990.82/221,706.48 = 73,023.20/x
  3. Step 3: Cross multiply
    147,990.82x = 221,706.48 × 73,023.20
  4. Step 4: Simplify right side
    147,990.82x = 16,189,716,630.34
  5. Step 5: Solve for x
    x = 16,189,716,630.34/147,990.82
  6. Step 6: Final answer
    x = 109,396.76

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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.