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Finding the Fourth Proportional to 61,154.31, 84,393.65 and 33,930.90

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Solution

The fourth proportional to 61,154.31, 84,393.65 and 33,930.90 is: 46,825.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,154.31 : 84,393.65 = 33,930.90 : x
  2. Step 2: Convert to fraction form
    61,154.31/84,393.65 = 33,930.90/x
  3. Step 3: Cross multiply
    61,154.31x = 84,393.65 × 33,930.90
  4. Step 4: Simplify right side
    61,154.31x = 2,863,552,392.75
  5. Step 5: Solve for x
    x = 2,863,552,392.75/61,154.31
  6. Step 6: Final answer
    x = 46,825.03

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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.