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Finding the Fourth Proportional to 71,588.41, 98,793.21 and 39,326.02

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Solution

The fourth proportional to 71,588.41, 98,793.21 and 39,326.02 is: 54,270.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,588.41 : 98,793.21 = 39,326.02 : x
  2. Step 2: Convert to fraction form
    71,588.41/98,793.21 = 39,326.02/x
  3. Step 3: Cross multiply
    71,588.41x = 98,793.21 × 39,326.02
  4. Step 4: Simplify right side
    71,588.41x = 3,885,143,752.32
  5. Step 5: Solve for x
    x = 3,885,143,752.32/71,588.41
  6. Step 6: Final answer
    x = 54,270.57

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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.