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Finding the Fourth Proportional to 146,312.52, 201,912.18 and 79,244.52

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Solution

The fourth proportional to 146,312.52, 201,912.18 and 79,244.52 is: 109,357.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,312.52 : 201,912.18 = 79,244.52 : x
  2. Step 2: Convert to fraction form
    146,312.52/201,912.18 = 79,244.52/x
  3. Step 3: Cross multiply
    146,312.52x = 201,912.18 × 79,244.52
  4. Step 4: Simplify right side
    146,312.52x = 16,000,433,786.25
  5. Step 5: Solve for x
    x = 16,000,433,786.25/146,312.52
  6. Step 6: Final answer
    x = 109,357.93

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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.