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Finding the Fourth Proportional to 73,319.96, 109,979.94 and 26,557.40

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Solution

The fourth proportional to 73,319.96, 109,979.94 and 26,557.40 is: 39,836.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,319.96 : 109,979.94 = 26,557.40 : x
  2. Step 2: Convert to fraction form
    73,319.96/109,979.94 = 26,557.40/x
  3. Step 3: Cross multiply
    73,319.96x = 109,979.94 × 26,557.40
  4. Step 4: Simplify right side
    73,319.96x = 2,920,781,258.56
  5. Step 5: Solve for x
    x = 2,920,781,258.56/73,319.96
  6. Step 6: Final answer
    x = 39,836.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.