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Finding the Fourth Proportional to 445,707.22, 668,551.11 and 108,750.82

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Solution

The fourth proportional to 445,707.22, 668,551.11 and 108,750.82 is: 163,123.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,707.22 : 668,551.11 = 108,750.82 : x
  2. Step 2: Convert to fraction form
    445,707.22/668,551.11 = 108,750.82/x
  3. Step 3: Cross multiply
    445,707.22x = 668,551.11 × 108,750.82
  4. Step 4: Simplify right side
    445,707.22x = 72,705,481,424.41
  5. Step 5: Solve for x
    x = 72,705,481,424.41/445,707.22
  6. Step 6: Final answer
    x = 163,123.86

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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.