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Finding the Fourth Proportional to 354,135.16, 531,297.51 and 154,471.78

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Solution

The fourth proportional to 354,135.16, 531,297.51 and 154,471.78 is: 231,749.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,135.16 : 531,297.51 = 154,471.78 : x
  2. Step 2: Convert to fraction form
    354,135.16/531,297.51 = 154,471.78/x
  3. Step 3: Cross multiply
    354,135.16x = 531,297.51 × 154,471.78
  4. Step 4: Simplify right side
    354,135.16x = 82,070,472,079.27
  5. Step 5: Solve for x
    x = 82,070,472,079.27/354,135.16
  6. Step 6: Final answer
    x = 231,749.01

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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.