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Finding the Fourth Proportional to 96,981.82, 133,803.74 and 58,729.16

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Solution

The fourth proportional to 96,981.82, 133,803.74 and 58,729.16 is: 81,027.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,981.82 : 133,803.74 = 58,729.16 : x
  2. Step 2: Convert to fraction form
    96,981.82/133,803.74 = 58,729.16/x
  3. Step 3: Cross multiply
    96,981.82x = 133,803.74 × 58,729.16
  4. Step 4: Simplify right side
    96,981.82x = 7,858,181,255.06
  5. Step 5: Solve for x
    x = 7,858,181,255.06/96,981.82
  6. Step 6: Final answer
    x = 81,027.36

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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.