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Finding the Fourth Proportional to 137,045.22, 188,907.99 and 126,047.82

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Solution

The fourth proportional to 137,045.22, 188,907.99 and 126,047.82 is: 173,748.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,045.22 : 188,907.99 = 126,047.82 : x
  2. Step 2: Convert to fraction form
    137,045.22/188,907.99 = 126,047.82/x
  3. Step 3: Cross multiply
    137,045.22x = 188,907.99 × 126,047.82
  4. Step 4: Simplify right side
    137,045.22x = 23,811,440,320.08
  5. Step 5: Solve for x
    x = 23,811,440,320.08/137,045.22
  6. Step 6: Final answer
    x = 173,748.78

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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.