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Finding the Fourth Proportional to 118,737.82, 163,858.28 and 65,022.85

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Solution

The fourth proportional to 118,737.82, 163,858.28 and 65,022.85 is: 89,731.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,737.82 : 163,858.28 = 65,022.85 : x
  2. Step 2: Convert to fraction form
    118,737.82/163,858.28 = 65,022.85/x
  3. Step 3: Cross multiply
    118,737.82x = 163,858.28 × 65,022.85
  4. Step 4: Simplify right side
    118,737.82x = 10,654,532,361.70
  5. Step 5: Solve for x
    x = 10,654,532,361.70/118,737.82
  6. Step 6: Final answer
    x = 89,731.58

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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.