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Finding the Fourth Proportional to 104,436, 144,139.91 and 61,993.62

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Solution

The fourth proportional to 104,436, 144,139.91 and 61,993.62 is: 85,562.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,436 : 144,139.91 = 61,993.62 : x
  2. Step 2: Convert to fraction form
    104,436/144,139.91 = 61,993.62/x
  3. Step 3: Cross multiply
    104,436x = 144,139.91 × 61,993.62
  4. Step 4: Simplify right side
    104,436x = 8,935,754,497.41
  5. Step 5: Solve for x
    x = 8,935,754,497.41/104,436
  6. Step 6: Final answer
    x = 85,562.01

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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.