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Finding the Fourth Proportional to 73,886.55, 110,665.80 and 60,764.55

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Solution

The fourth proportional to 73,886.55, 110,665.80 and 60,764.55 is: 91,011.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,886.55 : 110,665.80 = 60,764.55 : x
  2. Step 2: Convert to fraction form
    73,886.55/110,665.80 = 60,764.55/x
  3. Step 3: Cross multiply
    73,886.55x = 110,665.80 × 60,764.55
  4. Step 4: Simplify right side
    73,886.55x = 6,724,557,537.39
  5. Step 5: Solve for x
    x = 6,724,557,537.39/73,886.55
  6. Step 6: Final answer
    x = 91,011.93

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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.