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Finding the Fourth Proportional to 118,163.76, 163,067.76 and 64,448.58

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Solution

The fourth proportional to 118,163.76, 163,067.76 and 64,448.58 is: 88,940.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,163.76 : 163,067.76 = 64,448.58 : x
  2. Step 2: Convert to fraction form
    118,163.76/163,067.76 = 64,448.58/x
  3. Step 3: Cross multiply
    118,163.76x = 163,067.76 × 64,448.58
  4. Step 4: Simplify right side
    118,163.76x = 10,509,485,575.78
  5. Step 5: Solve for x
    x = 10,509,485,575.78/118,163.76
  6. Step 6: Final answer
    x = 88,940.01

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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.