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Finding the Fourth Proportional to 61,881.36, 92,723.16 and 39,676.32

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Solution

The fourth proportional to 61,881.36, 92,723.16 and 39,676.32 is: 59,451.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,881.36 : 92,723.16 = 39,676.32 : x
  2. Step 2: Convert to fraction form
    61,881.36/92,723.16 = 39,676.32/x
  3. Step 3: Cross multiply
    61,881.36x = 92,723.16 × 39,676.32
  4. Step 4: Simplify right side
    61,881.36x = 3,678,913,767.57
  5. Step 5: Solve for x
    x = 3,678,913,767.57/61,881.36
  6. Step 6: Final answer
    x = 59,451.09

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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.