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Finding the Fourth Proportional to 363,820.80, 545,990.40 and 153,609.60

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Solution

The fourth proportional to 363,820.80, 545,990.40 and 153,609.60 is: 230,523.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,820.80 : 545,990.40 = 153,609.60 : x
  2. Step 2: Convert to fraction form
    363,820.80/545,990.40 = 153,609.60/x
  3. Step 3: Cross multiply
    363,820.80x = 545,990.40 × 153,609.60
  4. Step 4: Simplify right side
    363,820.80x = 83,869,366,947.84
  5. Step 5: Solve for x
    x = 83,869,366,947.84/363,820.80
  6. Step 6: Final answer
    x = 230,523.84

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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.