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Finding the Fourth Proportional to 103,228.17, 154,857.65 and 36,662.71

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Solution

The fourth proportional to 103,228.17, 154,857.65 and 36,662.71 is: 54,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,228.17 : 154,857.65 = 36,662.71 : x
  2. Step 2: Convert to fraction form
    103,228.17/154,857.65 = 36,662.71/x
  3. Step 3: Cross multiply
    103,228.17x = 154,857.65 × 36,662.71
  4. Step 4: Simplify right side
    103,228.17x = 5,677,500,929.92
  5. Step 5: Solve for x
    x = 5,677,500,929.92/103,228.17
  6. Step 6: Final answer
    x = 54,999.53

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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.