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Finding the Fourth Proportional to 79,251.66, 118,051.64 and 75,044.34

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Solution

The fourth proportional to 79,251.66, 118,051.64 and 75,044.34 is: 111,784.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,251.66 : 118,051.64 = 75,044.34 : x
  2. Step 2: Convert to fraction form
    79,251.66/118,051.64 = 75,044.34/x
  3. Step 3: Cross multiply
    79,251.66x = 118,051.64 × 75,044.34
  4. Step 4: Simplify right side
    79,251.66x = 8,859,107,409.72
  5. Step 5: Solve for x
    x = 8,859,107,409.72/79,251.66
  6. Step 6: Final answer
    x = 111,784.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.