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Finding the Fourth Proportional to 79,658.07, 109,931.27 and 43,851.41

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Solution

The fourth proportional to 79,658.07, 109,931.27 and 43,851.41 is: 60,516.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,658.07 : 109,931.27 = 43,851.41 : x
  2. Step 2: Convert to fraction form
    79,658.07/109,931.27 = 43,851.41/x
  3. Step 3: Cross multiply
    79,658.07x = 109,931.27 × 43,851.41
  4. Step 4: Simplify right side
    79,658.07x = 4,820,640,423.68
  5. Step 5: Solve for x
    x = 4,820,640,423.68/79,658.07
  6. Step 6: Final answer
    x = 60,516.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.