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Finding the Fourth Proportional to 135,560.80, 203,399.52 and 65,492.64

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Solution

The fourth proportional to 135,560.80, 203,399.52 and 65,492.64 is: 98,267.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,560.80 : 203,399.52 = 65,492.64 : x
  2. Step 2: Convert to fraction form
    135,560.80/203,399.52 = 65,492.64/x
  3. Step 3: Cross multiply
    135,560.80x = 203,399.52 × 65,492.64
  4. Step 4: Simplify right side
    135,560.80x = 13,321,171,539.53
  5. Step 5: Solve for x
    x = 13,321,171,539.53/135,560.80
  6. Step 6: Final answer
    x = 98,267.14

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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.