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Finding the Fourth Proportional to 164,727.60, 247,091.40 and 108,643.20

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Solution

The fourth proportional to 164,727.60, 247,091.40 and 108,643.20 is: 162,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,727.60 : 247,091.40 = 108,643.20 : x
  2. Step 2: Convert to fraction form
    164,727.60/247,091.40 = 108,643.20/x
  3. Step 3: Cross multiply
    164,727.60x = 247,091.40 × 108,643.20
  4. Step 4: Simplify right side
    164,727.60x = 26,844,800,388.48
  5. Step 5: Solve for x
    x = 26,844,800,388.48/164,727.60
  6. Step 6: Final answer
    x = 162,964.80

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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.