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Finding the Fourth Proportional to 150,776.91, 208,093.90 and 90,353.17

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Solution

The fourth proportional to 150,776.91, 208,093.90 and 90,353.17 is: 124,700.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,776.91 : 208,093.90 = 90,353.17 : x
  2. Step 2: Convert to fraction form
    150,776.91/208,093.90 = 90,353.17/x
  3. Step 3: Cross multiply
    150,776.91x = 208,093.90 × 90,353.17
  4. Step 4: Simplify right side
    150,776.91x = 18,801,944,171.02
  5. Step 5: Solve for x
    x = 18,801,944,171.02/150,776.91
  6. Step 6: Final answer
    x = 124,700.42

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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.