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Finding the Fourth Proportional to 65,551.20, 98,351.10 and 63,121.20

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Solution

The fourth proportional to 65,551.20, 98,351.10 and 63,121.20 is: 94,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,551.20 : 98,351.10 = 63,121.20 : x
  2. Step 2: Convert to fraction form
    65,551.20/98,351.10 = 63,121.20/x
  3. Step 3: Cross multiply
    65,551.20x = 98,351.10 × 63,121.20
  4. Step 4: Simplify right side
    65,551.20x = 6,208,039,453.32
  5. Step 5: Solve for x
    x = 6,208,039,453.32/65,551.20
  6. Step 6: Final answer
    x = 94,705.20

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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.