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Finding the Fourth Proportional to 78,734.99, 118,108.41 and 22,574.66

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Solution

The fourth proportional to 78,734.99, 118,108.41 and 22,574.66 is: 33,863.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,734.99 : 118,108.41 = 22,574.66 : x
  2. Step 2: Convert to fraction form
    78,734.99/118,108.41 = 22,574.66/x
  3. Step 3: Cross multiply
    78,734.99x = 118,108.41 × 22,574.66
  4. Step 4: Simplify right side
    78,734.99x = 2,666,256,608.35
  5. Step 5: Solve for x
    x = 2,666,256,608.35/78,734.99
  6. Step 6: Final answer
    x = 33,863.68

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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.