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Finding the Fourth Proportional to 98,376.60, 146,797.63 and 87,773.73

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Solution

The fourth proportional to 98,376.60, 146,797.63 and 87,773.73 is: 130,976.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,376.60 : 146,797.63 = 87,773.73 : x
  2. Step 2: Convert to fraction form
    98,376.60/146,797.63 = 87,773.73/x
  3. Step 3: Cross multiply
    98,376.60x = 146,797.63 × 87,773.73
  4. Step 4: Simplify right side
    98,376.60x = 12,884,975,183.20
  5. Step 5: Solve for x
    x = 12,884,975,183.20/98,376.60
  6. Step 6: Final answer
    x = 130,976.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.