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Finding the Fourth Proportional to 79,189.38, 118,657.71 and 58,031.37

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Solution

The fourth proportional to 79,189.38, 118,657.71 and 58,031.37 is: 86,954.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,189.38 : 118,657.71 = 58,031.37 : x
  2. Step 2: Convert to fraction form
    79,189.38/118,657.71 = 58,031.37/x
  3. Step 3: Cross multiply
    79,189.38x = 118,657.71 × 58,031.37
  4. Step 4: Simplify right side
    79,189.38x = 6,885,869,472.36
  5. Step 5: Solve for x
    x = 6,885,869,472.36/79,189.38
  6. Step 6: Final answer
    x = 86,954.46

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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.