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Finding the Fourth Proportional to 110,368.80, 165,553.20 and 65,972.70

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Solution

The fourth proportional to 110,368.80, 165,553.20 and 65,972.70 is: 98,959.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,368.80 : 165,553.20 = 65,972.70 : x
  2. Step 2: Convert to fraction form
    110,368.80/165,553.20 = 65,972.70/x
  3. Step 3: Cross multiply
    110,368.80x = 165,553.20 × 65,972.70
  4. Step 4: Simplify right side
    110,368.80x = 10,921,991,597.64
  5. Step 5: Solve for x
    x = 10,921,991,597.64/110,368.80
  6. Step 6: Final answer
    x = 98,959.05

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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.