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Finding the Fourth Proportional to 225,620.32, 338,382.96 and 67,802.08

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Solution

The fourth proportional to 225,620.32, 338,382.96 and 67,802.08 is: 101,688.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,620.32 : 338,382.96 = 67,802.08 : x
  2. Step 2: Convert to fraction form
    225,620.32/338,382.96 = 67,802.08/x
  3. Step 3: Cross multiply
    225,620.32x = 338,382.96 × 67,802.08
  4. Step 4: Simplify right side
    225,620.32x = 22,943,068,524.56
  5. Step 5: Solve for x
    x = 22,943,068,524.56/225,620.32
  6. Step 6: Final answer
    x = 101,688.84

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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.