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Finding the Fourth Proportional to 112,992.85, 155,929.71 and 62,006.44

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Solution

The fourth proportional to 112,992.85, 155,929.71 and 62,006.44 is: 85,568.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,992.85 : 155,929.71 = 62,006.44 : x
  2. Step 2: Convert to fraction form
    112,992.85/155,929.71 = 62,006.44/x
  3. Step 3: Cross multiply
    112,992.85x = 155,929.71 × 62,006.44
  4. Step 4: Simplify right side
    112,992.85x = 9,668,646,207.33
  5. Step 5: Solve for x
    x = 9,668,646,207.33/112,992.85
  6. Step 6: Final answer
    x = 85,568.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.