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Finding the Fourth Proportional to 119,262.70, 178,883.04 and 40,367.86

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Solution

The fourth proportional to 119,262.70, 178,883.04 and 40,367.86 is: 60,548.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,262.70 : 178,883.04 = 40,367.86 : x
  2. Step 2: Convert to fraction form
    119,262.70/178,883.04 = 40,367.86/x
  3. Step 3: Cross multiply
    119,262.70x = 178,883.04 × 40,367.86
  4. Step 4: Simplify right side
    119,262.70x = 7,221,125,515.09
  5. Step 5: Solve for x
    x = 7,221,125,515.09/119,262.70
  6. Step 6: Final answer
    x = 60,548.06

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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.