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Finding the Fourth Proportional to 137,891.62, 206,646.06 and 62,828.31

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Solution

The fourth proportional to 137,891.62, 206,646.06 and 62,828.31 is: 94,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,891.62 : 206,646.06 = 62,828.31 : x
  2. Step 2: Convert to fraction form
    137,891.62/206,646.06 = 62,828.31/x
  3. Step 3: Cross multiply
    137,891.62x = 206,646.06 × 62,828.31
  4. Step 4: Simplify right side
    137,891.62x = 12,983,222,717.96
  5. Step 5: Solve for x
    x = 12,983,222,717.96/137,891.62
  6. Step 6: Final answer
    x = 94,155.27

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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.