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Finding the Fourth Proportional to 109,898.10, 164,847.15 and 65,574.90

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Solution

The fourth proportional to 109,898.10, 164,847.15 and 65,574.90 is: 98,362.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,898.10 : 164,847.15 = 65,574.90 : x
  2. Step 2: Convert to fraction form
    109,898.10/164,847.15 = 65,574.90/x
  3. Step 3: Cross multiply
    109,898.10x = 164,847.15 × 65,574.90
  4. Step 4: Simplify right side
    109,898.10x = 10,809,835,376.54
  5. Step 5: Solve for x
    x = 10,809,835,376.54/109,898.10
  6. Step 6: Final answer
    x = 98,362.35

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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.