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Finding the Fourth Proportional to 186,793.80, 257,775.15 and 101,910.87

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Solution

The fourth proportional to 186,793.80, 257,775.15 and 101,910.87 is: 140,636.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,793.80 : 257,775.15 = 101,910.87 : x
  2. Step 2: Convert to fraction form
    186,793.80/257,775.15 = 101,910.87/x
  3. Step 3: Cross multiply
    186,793.80x = 257,775.15 × 101,910.87
  4. Step 4: Simplify right side
    186,793.80x = 26,270,089,800.88
  5. Step 5: Solve for x
    x = 26,270,089,800.88/186,793.80
  6. Step 6: Final answer
    x = 140,636.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.