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Finding the Fourth Proportional to 110,090.78, 165,199.73 and 59,489.98

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Solution

The fourth proportional to 110,090.78, 165,199.73 and 59,489.98 is: 89,269.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,090.78 : 165,199.73 = 59,489.98 : x
  2. Step 2: Convert to fraction form
    110,090.78/165,199.73 = 59,489.98/x
  3. Step 3: Cross multiply
    110,090.78x = 165,199.73 × 59,489.98
  4. Step 4: Simplify right side
    110,090.78x = 9,827,728,090.57
  5. Step 5: Solve for x
    x = 9,827,728,090.57/110,090.78
  6. Step 6: Final answer
    x = 89,269.31

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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.