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Finding the Fourth Proportional to 110,068.80, 164,775.15 and 65,672.70

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Solution

The fourth proportional to 110,068.80, 164,775.15 and 65,672.70 is: 98,313.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,068.80 : 164,775.15 = 65,672.70 : x
  2. Step 2: Convert to fraction form
    110,068.80/164,775.15 = 65,672.70/x
  3. Step 3: Cross multiply
    110,068.80x = 164,775.15 × 65,672.70
  4. Step 4: Simplify right side
    110,068.80x = 10,821,228,993.41
  5. Step 5: Solve for x
    x = 10,821,228,993.41/110,068.80
  6. Step 6: Final answer
    x = 98,313.32

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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.