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Finding the Fourth Proportional to 133,144.52, 199,718.49 and 74,354.18

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Solution

The fourth proportional to 133,144.52, 199,718.49 and 74,354.18 is: 111,532.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,144.52 : 199,718.49 = 74,354.18 : x
  2. Step 2: Convert to fraction form
    133,144.52/199,718.49 = 74,354.18/x
  3. Step 3: Cross multiply
    133,144.52x = 199,718.49 × 74,354.18
  4. Step 4: Simplify right side
    133,144.52x = 14,849,904,554.79
  5. Step 5: Solve for x
    x = 14,849,904,554.79/133,144.52
  6. Step 6: Final answer
    x = 111,532.22

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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.