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Finding the Fourth Proportional to 61,020.88, 84,165.33 and 56,001.31

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Solution

The fourth proportional to 61,020.88, 84,165.33 and 56,001.31 is: 77,241.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,020.88 : 84,165.33 = 56,001.31 : x
  2. Step 2: Convert to fraction form
    61,020.88/84,165.33 = 56,001.31/x
  3. Step 3: Cross multiply
    61,020.88x = 84,165.33 × 56,001.31
  4. Step 4: Simplify right side
    61,020.88x = 4,713,368,736.58
  5. Step 5: Solve for x
    x = 4,713,368,736.58/61,020.88
  6. Step 6: Final answer
    x = 77,241.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.