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Finding the Fourth Proportional to 79,346.56, 118,788.72 and 41,817.28

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Solution

The fourth proportional to 79,346.56, 118,788.72 and 41,817.28 is: 62,604.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,346.56 : 118,788.72 = 41,817.28 : x
  2. Step 2: Convert to fraction form
    79,346.56/118,788.72 = 41,817.28/x
  3. Step 3: Cross multiply
    79,346.56x = 118,788.72 × 41,817.28
  4. Step 4: Simplify right side
    79,346.56x = 4,967,421,165.08
  5. Step 5: Solve for x
    x = 4,967,421,165.08/79,346.56
  6. Step 6: Final answer
    x = 62,604.11

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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.