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Finding the Fourth Proportional to 363,422.60, 545,133.90 and 185,870.60

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Solution

The fourth proportional to 363,422.60, 545,133.90 and 185,870.60 is: 278,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,422.60 : 545,133.90 = 185,870.60 : x
  2. Step 2: Convert to fraction form
    363,422.60/545,133.90 = 185,870.60/x
  3. Step 3: Cross multiply
    363,422.60x = 545,133.90 × 185,870.60
  4. Step 4: Simplify right side
    363,422.60x = 101,324,365,073.34
  5. Step 5: Solve for x
    x = 101,324,365,073.34/363,422.60
  6. Step 6: Final answer
    x = 278,805.90

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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.