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Finding the Fourth Proportional to 118,067.20, 176,985.60 and 105,625.60

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Solution

The fourth proportional to 118,067.20, 176,985.60 and 105,625.60 is: 158,335.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,067.20 : 176,985.60 = 105,625.60 : x
  2. Step 2: Convert to fraction form
    118,067.20/176,985.60 = 105,625.60/x
  3. Step 3: Cross multiply
    118,067.20x = 176,985.60 × 105,625.60
  4. Step 4: Simplify right side
    118,067.20x = 18,694,210,191.36
  5. Step 5: Solve for x
    x = 18,694,210,191.36/118,067.20
  6. Step 6: Final answer
    x = 158,335.34

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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.