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Finding the Fourth Proportional to 63,873.12, 87,506.56 and 61,478.90

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Solution

The fourth proportional to 63,873.12, 87,506.56 and 61,478.90 is: 84,226.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,873.12 : 87,506.56 = 61,478.90 : x
  2. Step 2: Convert to fraction form
    63,873.12/87,506.56 = 61,478.90/x
  3. Step 3: Cross multiply
    63,873.12x = 87,506.56 × 61,478.90
  4. Step 4: Simplify right side
    63,873.12x = 5,379,807,019.05
  5. Step 5: Solve for x
    x = 5,379,807,019.05/63,873.12
  6. Step 6: Final answer
    x = 84,226.46

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.