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Finding the Fourth Proportional to 61,868.91, 85,374.39 and 36,376.32

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Solution

The fourth proportional to 61,868.91, 85,374.39 and 36,376.32 is: 50,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,868.91 : 85,374.39 = 36,376.32 : x
  2. Step 2: Convert to fraction form
    61,868.91/85,374.39 = 36,376.32/x
  3. Step 3: Cross multiply
    61,868.91x = 85,374.39 × 36,376.32
  4. Step 4: Simplify right side
    61,868.91x = 3,105,606,130.44
  5. Step 5: Solve for x
    x = 3,105,606,130.44/61,868.91
  6. Step 6: Final answer
    x = 50,196.55

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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.