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Finding the Fourth Proportional to 228,362.04, 342,593.64 and 68,431.56

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Solution

The fourth proportional to 228,362.04, 342,593.64 and 68,431.56 is: 102,662.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,362.04 : 342,593.64 = 68,431.56 : x
  2. Step 2: Convert to fraction form
    228,362.04/342,593.64 = 68,431.56/x
  3. Step 3: Cross multiply
    228,362.04x = 342,593.64 × 68,431.56
  4. Step 4: Simplify right side
    228,362.04x = 23,444,217,231.28
  5. Step 5: Solve for x
    x = 23,444,217,231.28/228,362.04
  6. Step 6: Final answer
    x = 102,662.50

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1.5x scale

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.