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Finding the Fourth Proportional to 354,476.88, 531,715.32 and 144,065.52

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Solution

The fourth proportional to 354,476.88, 531,715.32 and 144,065.52 is: 216,098.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,476.88 : 531,715.32 = 144,065.52 : x
  2. Step 2: Convert to fraction form
    354,476.88/531,715.32 = 144,065.52/x
  3. Step 3: Cross multiply
    354,476.88x = 531,715.32 × 144,065.52
  4. Step 4: Simplify right side
    354,476.88x = 76,601,844,067.77
  5. Step 5: Solve for x
    x = 76,601,844,067.77/354,476.88
  6. Step 6: Final answer
    x = 216,098.28

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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.