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Finding the Fourth Proportional to 79,688.70, 119,494.98 and 46,418.22

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Solution

The fourth proportional to 79,688.70, 119,494.98 and 46,418.22 is: 69,605.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,688.70 : 119,494.98 = 46,418.22 : x
  2. Step 2: Convert to fraction form
    79,688.70/119,494.98 = 46,418.22/x
  3. Step 3: Cross multiply
    79,688.70x = 119,494.98 × 46,418.22
  4. Step 4: Simplify right side
    79,688.70x = 5,546,744,270.54
  5. Step 5: Solve for x
    x = 5,546,744,270.54/79,688.70
  6. Step 6: Final answer
    x = 69,605.15

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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.