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Finding the Fourth Proportional to 109,067.80, 163,601.70 and 73,816.60

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Solution

The fourth proportional to 109,067.80, 163,601.70 and 73,816.60 is: 110,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,067.80 : 163,601.70 = 73,816.60 : x
  2. Step 2: Convert to fraction form
    109,067.80/163,601.70 = 73,816.60/x
  3. Step 3: Cross multiply
    109,067.80x = 163,601.70 × 73,816.60
  4. Step 4: Simplify right side
    109,067.80x = 12,076,521,248.22
  5. Step 5: Solve for x
    x = 12,076,521,248.22/109,067.80
  6. Step 6: Final answer
    x = 110,724.90

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1.5x scale

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.