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Finding the Fourth Proportional to 99,326.82, 136,980.20 and 73,896.87

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Solution

The fourth proportional to 99,326.82, 136,980.20 and 73,896.87 is: 101,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,326.82 : 136,980.20 = 73,896.87 : x
  2. Step 2: Convert to fraction form
    99,326.82/136,980.20 = 73,896.87/x
  3. Step 3: Cross multiply
    99,326.82x = 136,980.20 × 73,896.87
  4. Step 4: Simplify right side
    99,326.82x = 10,122,407,662.49
  5. Step 5: Solve for x
    x = 10,122,407,662.49/99,326.82
  6. Step 6: Final answer
    x = 101,910.12

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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.