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Finding the Fourth Proportional to 163,796.74, 245,581.11 and 72,562.59

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Solution

The fourth proportional to 163,796.74, 245,581.11 and 72,562.59 is: 108,793.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,796.74 : 245,581.11 = 72,562.59 : x
  2. Step 2: Convert to fraction form
    163,796.74/245,581.11 = 72,562.59/x
  3. Step 3: Cross multiply
    163,796.74x = 245,581.11 × 72,562.59
  4. Step 4: Simplify right side
    163,796.74x = 17,820,001,396.67
  5. Step 5: Solve for x
    x = 17,820,001,396.67/163,796.74
  6. Step 6: Final answer
    x = 108,793.38

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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.