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Finding the Fourth Proportional to 103,206.77, 154,853.99 and 56,404.97

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Solution

The fourth proportional to 103,206.77, 154,853.99 and 56,404.97 is: 84,631.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,206.77 : 154,853.99 = 56,404.97 : x
  2. Step 2: Convert to fraction form
    103,206.77/154,853.99 = 56,404.97/x
  3. Step 3: Cross multiply
    103,206.77x = 154,853.99 × 56,404.97
  4. Step 4: Simplify right side
    103,206.77x = 8,734,534,660.33
  5. Step 5: Solve for x
    x = 8,734,534,660.33/103,206.77
  6. Step 6: Final answer
    x = 84,631.41

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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.