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Finding the Fourth Proportional to 118,745.97, 163,869.68 and 64,298.73

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Solution

The fourth proportional to 118,745.97, 163,869.68 and 64,298.73 is: 88,732.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,745.97 : 163,869.68 = 64,298.73 : x
  2. Step 2: Convert to fraction form
    118,745.97/163,869.68 = 64,298.73/x
  3. Step 3: Cross multiply
    118,745.97x = 163,869.68 × 64,298.73
  4. Step 4: Simplify right side
    118,745.97x = 10,536,612,163.00
  5. Step 5: Solve for x
    x = 10,536,612,163.00/118,745.97
  6. Step 6: Final answer
    x = 88,732.38

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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.