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Finding the Fourth Proportional to 118,163.88, 177,248.25 and 65,905.92

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Solution

The fourth proportional to 118,163.88, 177,248.25 and 65,905.92 is: 98,860.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,163.88 : 177,248.25 = 65,905.92 : x
  2. Step 2: Convert to fraction form
    118,163.88/177,248.25 = 65,905.92/x
  3. Step 3: Cross multiply
    118,163.88x = 177,248.25 × 65,905.92
  4. Step 4: Simplify right side
    118,163.88x = 11,681,708,984.64
  5. Step 5: Solve for x
    x = 11,681,708,984.64/118,163.88
  6. Step 6: Final answer
    x = 98,860.24

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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.