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Finding the Fourth Proportional to 88,138.88, 121,631.65 and 48,394.88

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Solution

The fourth proportional to 88,138.88, 121,631.65 and 48,394.88 is: 66,784.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,138.88 : 121,631.65 = 48,394.88 : x
  2. Step 2: Convert to fraction form
    88,138.88/121,631.65 = 48,394.88/x
  3. Step 3: Cross multiply
    88,138.88x = 121,631.65 × 48,394.88
  4. Step 4: Simplify right side
    88,138.88x = 5,886,348,376.81
  5. Step 5: Solve for x
    x = 5,886,348,376.81/88,138.88
  6. Step 6: Final answer
    x = 66,784.93

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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.