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Finding the Fourth Proportional to 110,551.90, 165,811.65 and 54,376.93

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Solution

The fourth proportional to 110,551.90, 165,811.65 and 54,376.93 is: 81,557.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,551.90 : 165,811.65 = 54,376.93 : x
  2. Step 2: Convert to fraction form
    110,551.90/165,811.65 = 54,376.93/x
  3. Step 3: Cross multiply
    110,551.90x = 165,811.65 × 54,376.93
  4. Step 4: Simplify right side
    110,551.90x = 9,016,328,142.03
  5. Step 5: Solve for x
    x = 9,016,328,142.03/110,551.90
  6. Step 6: Final answer
    x = 81,557.42

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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.