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Finding the Fourth Proportional to 135,712.56, 203,662.24 and 60,916.36

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Solution

The fourth proportional to 135,712.56, 203,662.24 and 60,916.36 is: 91,416.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,712.56 : 203,662.24 = 60,916.36 : x
  2. Step 2: Convert to fraction form
    135,712.56/203,662.24 = 60,916.36/x
  3. Step 3: Cross multiply
    135,712.56x = 203,662.24 × 60,916.36
  4. Step 4: Simplify right side
    135,712.56x = 12,406,362,330.25
  5. Step 5: Solve for x
    x = 12,406,362,330.25/135,712.56
  6. Step 6: Final answer
    x = 91,416.46

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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.