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Finding the Fourth Proportional to 79,173.96, 118,770.72 and 25,864.68

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Solution

The fourth proportional to 79,173.96, 118,770.72 and 25,864.68 is: 38,800.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,173.96 : 118,770.72 = 25,864.68 : x
  2. Step 2: Convert to fraction form
    79,173.96/118,770.72 = 25,864.68/x
  3. Step 3: Cross multiply
    79,173.96x = 118,770.72 × 25,864.68
  4. Step 4: Simplify right side
    79,173.96x = 3,071,966,666.17
  5. Step 5: Solve for x
    x = 3,071,966,666.17/79,173.96
  6. Step 6: Final answer
    x = 38,800.21

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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.