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Finding the Fourth Proportional to 103,227.68, 154,848.72 and 40,898

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Solution

The fourth proportional to 103,227.68, 154,848.72 and 40,898 is: 61,349.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,227.68 : 154,848.72 = 40,898 : x
  2. Step 2: Convert to fraction form
    103,227.68/154,848.72 = 40,898/x
  3. Step 3: Cross multiply
    103,227.68x = 154,848.72 × 40,898
  4. Step 4: Simplify right side
    103,227.68x = 6,333,002,950.56
  5. Step 5: Solve for x
    x = 6,333,002,950.56/103,227.68
  6. Step 6: Final answer
    x = 61,349.85

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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.