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Finding the Fourth Proportional to 226,720.69, 312,874.85 and 126,118.69

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Solution

The fourth proportional to 226,720.69, 312,874.85 and 126,118.69 is: 174,043.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,720.69 : 312,874.85 = 126,118.69 : x
  2. Step 2: Convert to fraction form
    226,720.69/312,874.85 = 126,118.69/x
  3. Step 3: Cross multiply
    226,720.69x = 312,874.85 × 126,118.69
  4. Step 4: Simplify right side
    226,720.69x = 39,459,365,749.06
  5. Step 5: Solve for x
    x = 39,459,365,749.06/226,720.69
  6. Step 6: Final answer
    x = 174,043.96

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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.