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Finding the Fourth Proportional to 98,409.92, 146,847.04 and 87,807.02

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Solution

The fourth proportional to 98,409.92, 146,847.04 and 87,807.02 is: 131,025.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,409.92 : 146,847.04 = 87,807.02 : x
  2. Step 2: Convert to fraction form
    98,409.92/146,847.04 = 87,807.02/x
  3. Step 3: Cross multiply
    98,409.92x = 146,847.04 × 87,807.02
  4. Step 4: Simplify right side
    98,409.92x = 12,894,201,344.40
  5. Step 5: Solve for x
    x = 12,894,201,344.40/98,409.92
  6. Step 6: Final answer
    x = 131,025.42

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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.