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Finding the Fourth Proportional to 84,371, 126,577.66 and 25,206.44

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Solution

The fourth proportional to 84,371, 126,577.66 and 25,206.44 is: 37,815.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,371 : 126,577.66 = 25,206.44 : x
  2. Step 2: Convert to fraction form
    84,371/126,577.66 = 25,206.44/x
  3. Step 3: Cross multiply
    84,371x = 126,577.66 × 25,206.44
  4. Step 4: Simplify right side
    84,371x = 3,190,572,192.13
  5. Step 5: Solve for x
    x = 3,190,572,192.13/84,371
  6. Step 6: Final answer
    x = 37,815.98

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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.