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Finding the Fourth Proportional to 61,148.62, 84,376.79 and 35,648.91

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Solution

The fourth proportional to 61,148.62, 84,376.79 and 35,648.91 is: 49,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,148.62 : 84,376.79 = 35,648.91 : x
  2. Step 2: Convert to fraction form
    61,148.62/84,376.79 = 35,648.91/x
  3. Step 3: Cross multiply
    61,148.62x = 84,376.79 × 35,648.91
  4. Step 4: Simplify right side
    61,148.62x = 3,007,940,548.24
  5. Step 5: Solve for x
    x = 3,007,940,548.24/61,148.62
  6. Step 6: Final answer
    x = 49,190.65

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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.