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Finding the Fourth Proportional to 215,553.74, 297,464.22 and 124,962.21

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Solution

The fourth proportional to 215,553.74, 297,464.22 and 124,962.21 is: 172,447.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,553.74 : 297,464.22 = 124,962.21 : x
  2. Step 2: Convert to fraction form
    215,553.74/297,464.22 = 124,962.21/x
  3. Step 3: Cross multiply
    215,553.74x = 297,464.22 × 124,962.21
  4. Step 4: Simplify right side
    215,553.74x = 37,171,786,327.13
  5. Step 5: Solve for x
    x = 37,171,786,327.13/215,553.74
  6. Step 6: Final answer
    x = 172,447.89

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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.