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Finding the Fourth Proportional to 144,704.79, 217,088.94 and 48,638.61

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Solution

The fourth proportional to 144,704.79, 217,088.94 and 48,638.61 is: 72,968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,704.79 : 217,088.94 = 48,638.61 : x
  2. Step 2: Convert to fraction form
    144,704.79/217,088.94 = 48,638.61/x
  3. Step 3: Cross multiply
    144,704.79x = 217,088.94 × 48,638.61
  4. Step 4: Simplify right side
    144,704.79x = 10,558,904,287.97
  5. Step 5: Solve for x
    x = 10,558,904,287.97/144,704.79
  6. Step 6: Final answer
    x = 72,968.59

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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.