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Finding the Fourth Proportional to 133,095.60, 199,789.20 and 74,046.60

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Solution

The fourth proportional to 133,095.60, 199,789.20 and 74,046.60 is: 111,151.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,095.60 : 199,789.20 = 74,046.60 : x
  2. Step 2: Convert to fraction form
    133,095.60/199,789.20 = 74,046.60/x
  3. Step 3: Cross multiply
    133,095.60x = 199,789.20 × 74,046.60
  4. Step 4: Simplify right side
    133,095.60x = 14,793,710,976.72
  5. Step 5: Solve for x
    x = 14,793,710,976.72/133,095.60
  6. Step 6: Final answer
    x = 111,151.01

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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.