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Finding the Fourth Proportional to 219,177.89, 328,476.21 and 112,557.54

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Solution

The fourth proportional to 219,177.89, 328,476.21 and 112,557.54 is: 168,687.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,177.89 : 328,476.21 = 112,557.54 : x
  2. Step 2: Convert to fraction form
    219,177.89/328,476.21 = 112,557.54/x
  3. Step 3: Cross multiply
    219,177.89x = 328,476.21 × 112,557.54
  4. Step 4: Simplify right side
    219,177.89x = 36,972,474,955.82
  5. Step 5: Solve for x
    x = 36,972,474,955.82/219,177.89
  6. Step 6: Final answer
    x = 168,687.06

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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.