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Finding the Fourth Proportional to 123,377.22, 185,139.54 and 113,338.89

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Solution

The fourth proportional to 123,377.22, 185,139.54 and 113,338.89 is: 170,076.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,377.22 : 185,139.54 = 113,338.89 : x
  2. Step 2: Convert to fraction form
    123,377.22/185,139.54 = 113,338.89/x
  3. Step 3: Cross multiply
    123,377.22x = 185,139.54 × 113,338.89
  4. Step 4: Simplify right side
    123,377.22x = 20,983,509,958.71
  5. Step 5: Solve for x
    x = 20,983,509,958.71/123,377.22
  6. Step 6: Final answer
    x = 170,076.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.