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Finding the Fourth Proportional to 219,231.48, 328,881.66 and 92,872.08

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Solution

The fourth proportional to 219,231.48, 328,881.66 and 92,872.08 is: 139,322.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,231.48 : 328,881.66 = 92,872.08 : x
  2. Step 2: Convert to fraction form
    219,231.48/328,881.66 = 92,872.08/x
  3. Step 3: Cross multiply
    219,231.48x = 328,881.66 × 92,872.08
  4. Step 4: Simplify right side
    219,231.48x = 30,543,923,838.05
  5. Step 5: Solve for x
    x = 30,543,923,838.05/219,231.48
  6. Step 6: Final answer
    x = 139,322.71

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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.