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Finding the Fourth Proportional to 104,493.78, 144,204.26 and 61,476.30

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Solution

The fourth proportional to 104,493.78, 144,204.26 and 61,476.30 is: 84,838.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,493.78 : 144,204.26 = 61,476.30 : x
  2. Step 2: Convert to fraction form
    104,493.78/144,204.26 = 61,476.30/x
  3. Step 3: Cross multiply
    104,493.78x = 144,204.26 × 61,476.30
  4. Step 4: Simplify right side
    104,493.78x = 8,865,144,349.04
  5. Step 5: Solve for x
    x = 8,865,144,349.04/104,493.78
  6. Step 6: Final answer
    x = 84,838.97

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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.