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Finding the Fourth Proportional to 363,963.60, 545,848.20 and 111,243.60

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Solution

The fourth proportional to 363,963.60, 545,848.20 and 111,243.60 is: 166,835.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,963.60 : 545,848.20 = 111,243.60 : x
  2. Step 2: Convert to fraction form
    363,963.60/545,848.20 = 111,243.60/x
  3. Step 3: Cross multiply
    363,963.60x = 545,848.20 × 111,243.60
  4. Step 4: Simplify right side
    363,963.60x = 60,722,118,821.52
  5. Step 5: Solve for x
    x = 60,722,118,821.52/363,963.60
  6. Step 6: Final answer
    x = 166,835.69

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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.