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Finding the Fourth Proportional to 266,217.41, 367,394.91 and 145,369.91

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Solution

The fourth proportional to 266,217.41, 367,394.91 and 145,369.91 is: 200,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,217.41 : 367,394.91 = 145,369.91 : x
  2. Step 2: Convert to fraction form
    266,217.41/367,394.91 = 145,369.91/x
  3. Step 3: Cross multiply
    266,217.41x = 367,394.91 × 145,369.91
  4. Step 4: Simplify right side
    266,217.41x = 53,408,165,374.51
  5. Step 5: Solve for x
    x = 53,408,165,374.51/266,217.41
  6. Step 6: Final answer
    x = 200,618.60

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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.