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Finding the Fourth Proportional to 73,218.74, 109,828.07 and 38,226.74

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Solution

The fourth proportional to 73,218.74, 109,828.07 and 38,226.74 is: 57,340.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,218.74 : 109,828.07 = 38,226.74 : x
  2. Step 2: Convert to fraction form
    73,218.74/109,828.07 = 38,226.74/x
  3. Step 3: Cross multiply
    73,218.74x = 109,828.07 × 38,226.74
  4. Step 4: Simplify right side
    73,218.74x = 4,198,368,479.67
  5. Step 5: Solve for x
    x = 4,198,368,479.67/73,218.74
  6. Step 6: Final answer
    x = 57,340.08

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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.