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Finding the Fourth Proportional to 223,959.20, 336,015.60 and 99,389.60

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Solution

The fourth proportional to 223,959.20, 336,015.60 and 99,389.60 is: 149,118.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,959.20 : 336,015.60 = 99,389.60 : x
  2. Step 2: Convert to fraction form
    223,959.20/336,015.60 = 99,389.60/x
  3. Step 3: Cross multiply
    223,959.20x = 336,015.60 × 99,389.60
  4. Step 4: Simplify right side
    223,959.20x = 33,396,456,077.76
  5. Step 5: Solve for x
    x = 33,396,456,077.76/223,959.20
  6. Step 6: Final answer
    x = 149,118.48

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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.