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Finding the Fourth Proportional to 356,118.84, 534,249.54 and 131,480.64

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Solution

The fourth proportional to 356,118.84, 534,249.54 and 131,480.64 is: 197,247.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,118.84 : 534,249.54 = 131,480.64 : x
  2. Step 2: Convert to fraction form
    356,118.84/534,249.54 = 131,480.64/x
  3. Step 3: Cross multiply
    356,118.84x = 534,249.54 × 131,480.64
  4. Step 4: Simplify right side
    356,118.84x = 70,243,471,438.91
  5. Step 5: Solve for x
    x = 70,243,471,438.91/356,118.84
  6. Step 6: Final answer
    x = 197,247.28

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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.