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Finding the Fourth Proportional to 226,661.41, 312,791.01 and 124,684.67

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Solution

The fourth proportional to 226,661.41, 312,791.01 and 124,684.67 is: 172,063.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,661.41 : 312,791.01 = 124,684.67 : x
  2. Step 2: Convert to fraction form
    226,661.41/312,791.01 = 124,684.67/x
  3. Step 3: Cross multiply
    226,661.41x = 312,791.01 × 124,684.67
  4. Step 4: Simplify right side
    226,661.41x = 39,000,243,860.82
  5. Step 5: Solve for x
    x = 39,000,243,860.82/226,661.41
  6. Step 6: Final answer
    x = 172,063.89

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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.