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Finding the Fourth Proportional to 61,681.80, 92,468.70 and 41,896.20

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Solution

The fourth proportional to 61,681.80, 92,468.70 and 41,896.20 is: 62,807.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,681.80 : 92,468.70 = 41,896.20 : x
  2. Step 2: Convert to fraction form
    61,681.80/92,468.70 = 41,896.20/x
  3. Step 3: Cross multiply
    61,681.80x = 92,468.70 × 41,896.20
  4. Step 4: Simplify right side
    61,681.80x = 3,874,087,148.94
  5. Step 5: Solve for x
    x = 3,874,087,148.94/61,681.80
  6. Step 6: Final answer
    x = 62,807.62

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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.