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Finding the Fourth Proportional to 118,647.97, 163,752.56 and 67,660.79

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Solution

The fourth proportional to 118,647.97, 163,752.56 and 67,660.79 is: 93,382.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,647.97 : 163,752.56 = 67,660.79 : x
  2. Step 2: Convert to fraction form
    118,647.97/163,752.56 = 67,660.79/x
  3. Step 3: Cross multiply
    118,647.97x = 163,752.56 × 67,660.79
  4. Step 4: Simplify right side
    118,647.97x = 11,079,627,574.12
  5. Step 5: Solve for x
    x = 11,079,627,574.12/118,647.97
  6. Step 6: Final answer
    x = 93,382.36

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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.