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Finding the Fourth Proportional to 156,758.98, 216,361.47 and 96,381.31

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Solution

The fourth proportional to 156,758.98, 216,361.47 and 96,381.31 is: 133,027.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,758.98 : 216,361.47 = 96,381.31 : x
  2. Step 2: Convert to fraction form
    156,758.98/216,361.47 = 96,381.31/x
  3. Step 3: Cross multiply
    156,758.98x = 216,361.47 × 96,381.31
  4. Step 4: Simplify right side
    156,758.98x = 20,853,201,912.13
  5. Step 5: Solve for x
    x = 20,853,201,912.13/156,758.98
  6. Step 6: Final answer
    x = 133,027.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.