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Finding the Fourth Proportional to 79,048.96, 118,573.44 and 31,685.52

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Solution

The fourth proportional to 79,048.96, 118,573.44 and 31,685.52 is: 47,528.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,048.96 : 118,573.44 = 31,685.52 : x
  2. Step 2: Convert to fraction form
    79,048.96/118,573.44 = 31,685.52/x
  3. Step 3: Cross multiply
    79,048.96x = 118,573.44 × 31,685.52
  4. Step 4: Simplify right side
    79,048.96x = 3,757,061,104.59
  5. Step 5: Solve for x
    x = 3,757,061,104.59/79,048.96
  6. Step 6: Final answer
    x = 47,528.28

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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.