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Finding the Fourth Proportional to 79,186.76, 118,765.29 and 39,733.28

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Solution

The fourth proportional to 79,186.76, 118,765.29 and 39,733.28 is: 59,592.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,186.76 : 118,765.29 = 39,733.28 : x
  2. Step 2: Convert to fraction form
    79,186.76/118,765.29 = 39,733.28/x
  3. Step 3: Cross multiply
    79,186.76x = 118,765.29 × 39,733.28
  4. Step 4: Simplify right side
    79,186.76x = 4,718,934,521.85
  5. Step 5: Solve for x
    x = 4,718,934,521.85/79,186.76
  6. Step 6: Final answer
    x = 59,592.47

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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.