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Finding the Fourth Proportional to 121,693.93, 182,635.04 and 79,562.59

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Solution

The fourth proportional to 121,693.93, 182,635.04 and 79,562.59 is: 119,405.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,693.93 : 182,635.04 = 79,562.59 : x
  2. Step 2: Convert to fraction form
    121,693.93/182,635.04 = 79,562.59/x
  3. Step 3: Cross multiply
    121,693.93x = 182,635.04 × 79,562.59
  4. Step 4: Simplify right side
    121,693.93x = 14,530,916,549.47
  5. Step 5: Solve for x
    x = 14,530,916,549.47/121,693.93
  6. Step 6: Final answer
    x = 119,405.44

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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.