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Finding the Fourth Proportional to 109,770.81, 151,484.45 and 59,469.81

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Solution

The fourth proportional to 109,770.81, 151,484.45 and 59,469.81 is: 82,068.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,770.81 : 151,484.45 = 59,469.81 : x
  2. Step 2: Convert to fraction form
    109,770.81/151,484.45 = 59,469.81/x
  3. Step 3: Cross multiply
    109,770.81x = 151,484.45 × 59,469.81
  4. Step 4: Simplify right side
    109,770.81x = 9,008,751,162.11
  5. Step 5: Solve for x
    x = 9,008,751,162.11/109,770.81
  6. Step 6: Final answer
    x = 82,068.73

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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.