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Finding the Fourth Proportional to 71,504.10, 98,675.82 and 39,673.08

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Solution

The fourth proportional to 71,504.10, 98,675.82 and 39,673.08 is: 54,748.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,504.10 : 98,675.82 = 39,673.08 : x
  2. Step 2: Convert to fraction form
    71,504.10/98,675.82 = 39,673.08/x
  3. Step 3: Cross multiply
    71,504.10x = 98,675.82 × 39,673.08
  4. Step 4: Simplify right side
    71,504.10x = 3,914,773,700.93
  5. Step 5: Solve for x
    x = 3,914,773,700.93/71,504.10
  6. Step 6: Final answer
    x = 54,748.94

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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.