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Finding the Fourth Proportional to 98,754.82, 136,283.63 and 58,453.87

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Solution

The fourth proportional to 98,754.82, 136,283.63 and 58,453.87 is: 80,667.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,754.82 : 136,283.63 = 58,453.87 : x
  2. Step 2: Convert to fraction form
    98,754.82/136,283.63 = 58,453.87/x
  3. Step 3: Cross multiply
    98,754.82x = 136,283.63 × 58,453.87
  4. Step 4: Simplify right side
    98,754.82x = 7,966,305,591.15
  5. Step 5: Solve for x
    x = 7,966,305,591.15/98,754.82
  6. Step 6: Final answer
    x = 80,667.51

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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.