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Finding the Fourth Proportional to 133,310.78, 199,744.71 and 93,784.85

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Solution

The fourth proportional to 133,310.78, 199,744.71 and 93,784.85 is: 140,521.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,310.78 : 199,744.71 = 93,784.85 : x
  2. Step 2: Convert to fraction form
    133,310.78/199,744.71 = 93,784.85/x
  3. Step 3: Cross multiply
    133,310.78x = 199,744.71 × 93,784.85
  4. Step 4: Simplify right side
    133,310.78x = 18,733,026,666.92
  5. Step 5: Solve for x
    x = 18,733,026,666.92/133,310.78
  6. Step 6: Final answer
    x = 140,521.47

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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.