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Finding the Fourth Proportional to 400,803.08, 601,233.78 and 134,561.35

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Solution

The fourth proportional to 400,803.08, 601,233.78 and 134,561.35 is: 201,851.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,803.08 : 601,233.78 = 134,561.35 : x
  2. Step 2: Convert to fraction form
    400,803.08/601,233.78 = 134,561.35/x
  3. Step 3: Cross multiply
    400,803.08x = 601,233.78 × 134,561.35
  4. Step 4: Simplify right side
    400,803.08x = 80,902,826,096.23
  5. Step 5: Solve for x
    x = 80,902,826,096.23/400,803.08
  6. Step 6: Final answer
    x = 201,851.81

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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.