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Finding the Fourth Proportional to 159,690.36, 220,374.09 and 88,072.86

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Solution

The fourth proportional to 159,690.36, 220,374.09 and 88,072.86 is: 121,541.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,690.36 : 220,374.09 = 88,072.86 : x
  2. Step 2: Convert to fraction form
    159,690.36/220,374.09 = 88,072.86/x
  3. Step 3: Cross multiply
    159,690.36x = 220,374.09 × 88,072.86
  4. Step 4: Simplify right side
    159,690.36x = 19,408,976,376.20
  5. Step 5: Solve for x
    x = 19,408,976,376.20/159,690.36
  6. Step 6: Final answer
    x = 121,541.32

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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.