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Finding the Fourth Proportional to 165,875.80, 248,813.70 and 60,770.20

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Solution

The fourth proportional to 165,875.80, 248,813.70 and 60,770.20 is: 91,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,875.80 : 248,813.70 = 60,770.20 : x
  2. Step 2: Convert to fraction form
    165,875.80/248,813.70 = 60,770.20/x
  3. Step 3: Cross multiply
    165,875.80x = 248,813.70 × 60,770.20
  4. Step 4: Simplify right side
    165,875.80x = 15,120,458,311.74
  5. Step 5: Solve for x
    x = 15,120,458,311.74/165,875.80
  6. Step 6: Final answer
    x = 91,155.30

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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.