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Finding the Fourth Proportional to 223,045.89, 307,763.61 and 126,249.27

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Solution

The fourth proportional to 223,045.89, 307,763.61 and 126,249.27 is: 174,201.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,045.89 : 307,763.61 = 126,249.27 : x
  2. Step 2: Convert to fraction form
    223,045.89/307,763.61 = 126,249.27/x
  3. Step 3: Cross multiply
    223,045.89x = 307,763.61 × 126,249.27
  4. Step 4: Simplify right side
    223,045.89x = 38,854,931,095.06
  5. Step 5: Solve for x
    x = 38,854,931,095.06/223,045.89
  6. Step 6: Final answer
    x = 174,201.51

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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.