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Finding the Fourth Proportional to 103,203.77, 154,849.49 and 56,401.97

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Solution

The fourth proportional to 103,203.77, 154,849.49 and 56,401.97 is: 84,626.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,203.77 : 154,849.49 = 56,401.97 : x
  2. Step 2: Convert to fraction form
    103,203.77/154,849.49 = 56,401.97/x
  3. Step 3: Cross multiply
    103,203.77x = 154,849.49 × 56,401.97
  4. Step 4: Simplify right side
    103,203.77x = 8,733,816,289.50
  5. Step 5: Solve for x
    x = 8,733,816,289.50/103,203.77
  6. Step 6: Final answer
    x = 84,626.91

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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.