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Finding the Fourth Proportional to 181,422.84, 250,359.12 and 100,849.56

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Solution

The fourth proportional to 181,422.84, 250,359.12 and 100,849.56 is: 139,169.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,422.84 : 250,359.12 = 100,849.56 : x
  2. Step 2: Convert to fraction form
    181,422.84/250,359.12 = 100,849.56/x
  3. Step 3: Cross multiply
    181,422.84x = 250,359.12 × 100,849.56
  4. Step 4: Simplify right side
    181,422.84x = 25,248,607,093.99
  5. Step 5: Solve for x
    x = 25,248,607,093.99/181,422.84
  6. Step 6: Final answer
    x = 139,169.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.