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Finding the Fourth Proportional to 61,235.41, 91,861.03 and 42,224.71

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Solution

The fourth proportional to 61,235.41, 91,861.03 and 42,224.71 is: 63,342.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,235.41 : 91,861.03 = 42,224.71 : x
  2. Step 2: Convert to fraction form
    61,235.41/91,861.03 = 42,224.71/x
  3. Step 3: Cross multiply
    61,235.41x = 91,861.03 × 42,224.71
  4. Step 4: Simplify right side
    61,235.41x = 3,878,805,175.18
  5. Step 5: Solve for x
    x = 3,878,805,175.18/61,235.41
  6. Step 6: Final answer
    x = 63,342.52

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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.