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Finding the Fourth Proportional to 73,082.88, 100,770.30 and 53,990.28

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Solution

The fourth proportional to 73,082.88, 100,770.30 and 53,990.28 is: 74,444.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,082.88 : 100,770.30 = 53,990.28 : x
  2. Step 2: Convert to fraction form
    73,082.88/100,770.30 = 53,990.28/x
  3. Step 3: Cross multiply
    73,082.88x = 100,770.30 × 53,990.28
  4. Step 4: Simplify right side
    73,082.88x = 5,440,616,712.68
  5. Step 5: Solve for x
    x = 5,440,616,712.68/73,082.88
  6. Step 6: Final answer
    x = 74,444.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.