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Finding the Fourth Proportional to 77,398.92, 116,120.52 and 37,967.40

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Solution

The fourth proportional to 77,398.92, 116,120.52 and 37,967.40 is: 56,961.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,398.92 : 116,120.52 = 37,967.40 : x
  2. Step 2: Convert to fraction form
    77,398.92/116,120.52 = 37,967.40/x
  3. Step 3: Cross multiply
    77,398.92x = 116,120.52 × 37,967.40
  4. Step 4: Simplify right side
    77,398.92x = 4,408,794,231.05
  5. Step 5: Solve for x
    x = 4,408,794,231.05/77,398.92
  6. Step 6: Final answer
    x = 56,961.96

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1.5x scale

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.