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Finding the Fourth Proportional to 79,838.85, 119,651.88 and 37,730.12

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Solution

The fourth proportional to 79,838.85, 119,651.88 and 37,730.12 is: 56,544.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,838.85 : 119,651.88 = 37,730.12 : x
  2. Step 2: Convert to fraction form
    79,838.85/119,651.88 = 37,730.12/x
  3. Step 3: Cross multiply
    79,838.85x = 119,651.88 × 37,730.12
  4. Step 4: Simplify right side
    79,838.85x = 4,514,479,333.85
  5. Step 5: Solve for x
    x = 4,514,479,333.85/79,838.85
  6. Step 6: Final answer
    x = 56,544.89

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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.