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Finding the Fourth Proportional to 91,200.52, 136,844.10 and 63,163.72

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Solution

The fourth proportional to 91,200.52, 136,844.10 and 63,163.72 is: 94,775.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,200.52 : 136,844.10 = 63,163.72 : x
  2. Step 2: Convert to fraction form
    91,200.52/136,844.10 = 63,163.72/x
  3. Step 3: Cross multiply
    91,200.52x = 136,844.10 × 63,163.72
  4. Step 4: Simplify right side
    91,200.52x = 8,643,582,416.05
  5. Step 5: Solve for x
    x = 8,643,582,416.05/91,200.52
  6. Step 6: Final answer
    x = 94,775.58

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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.