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Finding the Fourth Proportional to 245,264.49, 338,326.77 and 154,464.50

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Solution

The fourth proportional to 245,264.49, 338,326.77 and 154,464.50 is: 213,073.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,264.49 : 338,326.77 = 154,464.50 : x
  2. Step 2: Convert to fraction form
    245,264.49/338,326.77 = 154,464.50/x
  3. Step 3: Cross multiply
    245,264.49x = 338,326.77 × 154,464.50
  4. Step 4: Simplify right side
    245,264.49x = 52,259,476,789.72
  5. Step 5: Solve for x
    x = 52,259,476,789.72/245,264.49
  6. Step 6: Final answer
    x = 213,073.96

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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.