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Finding the Fourth Proportional to 156,791.69, 234,002.68 and 141,658.11

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Solution

The fourth proportional to 156,791.69, 234,002.68 and 141,658.11 is: 211,416.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,791.69 : 234,002.68 = 141,658.11 : x
  2. Step 2: Convert to fraction form
    156,791.69/234,002.68 = 141,658.11/x
  3. Step 3: Cross multiply
    156,791.69x = 234,002.68 × 141,658.11
  4. Step 4: Simplify right side
    156,791.69x = 33,148,377,029.59
  5. Step 5: Solve for x
    x = 33,148,377,029.59/156,791.69
  6. Step 6: Final answer
    x = 211,416.66

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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.