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Finding the Fourth Proportional to 133,264.83, 183,900.13 and 72,836.20

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Solution

The fourth proportional to 133,264.83, 183,900.13 and 72,836.20 is: 100,511.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,264.83 : 183,900.13 = 72,836.20 : x
  2. Step 2: Convert to fraction form
    133,264.83/183,900.13 = 72,836.20/x
  3. Step 3: Cross multiply
    133,264.83x = 183,900.13 × 72,836.20
  4. Step 4: Simplify right side
    133,264.83x = 13,394,586,648.71
  5. Step 5: Solve for x
    x = 13,394,586,648.71/133,264.83
  6. Step 6: Final answer
    x = 100,511.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.