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Finding the Fourth Proportional to 356,843.21, 535,265.22 and 120,166.07

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Solution

The fourth proportional to 356,843.21, 535,265.22 and 120,166.07 is: 180,249.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,843.21 : 535,265.22 = 120,166.07 : x
  2. Step 2: Convert to fraction form
    356,843.21/535,265.22 = 120,166.07/x
  3. Step 3: Cross multiply
    356,843.21x = 535,265.22 × 120,166.07
  4. Step 4: Simplify right side
    356,843.21x = 64,320,717,895.09
  5. Step 5: Solve for x
    x = 64,320,717,895.09/356,843.21
  6. Step 6: Final answer
    x = 180,249.24

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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.