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Finding the Fourth Proportional to 294,402.88, 441,603.24 and 72,786.88

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Solution

The fourth proportional to 294,402.88, 441,603.24 and 72,786.88 is: 109,180.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,402.88 : 441,603.24 = 72,786.88 : x
  2. Step 2: Convert to fraction form
    294,402.88/441,603.24 = 72,786.88/x
  3. Step 3: Cross multiply
    294,402.88x = 441,603.24 × 72,786.88
  4. Step 4: Simplify right side
    294,402.88x = 32,142,922,037.49
  5. Step 5: Solve for x
    x = 32,142,922,037.49/294,402.88
  6. Step 6: Final answer
    x = 109,180.05

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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.