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Finding the Fourth Proportional to 70,899.02, 97,845 and 39,067.91

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Solution

The fourth proportional to 70,899.02, 97,845 and 39,067.91 is: 53,916.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,899.02 : 97,845 = 39,067.91 : x
  2. Step 2: Convert to fraction form
    70,899.02/97,845 = 39,067.91/x
  3. Step 3: Cross multiply
    70,899.02x = 97,845 × 39,067.91
  4. Step 4: Simplify right side
    70,899.02x = 3,822,599,653.95
  5. Step 5: Solve for x
    x = 3,822,599,653.95/70,899.02
  6. Step 6: Final answer
    x = 53,916.11

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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.