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Finding the Fourth Proportional to 61,943.10, 86,895.30 and 61,943.10

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Solution

The fourth proportional to 61,943.10, 86,895.30 and 61,943.10 is: 86,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,943.10 : 86,895.30 = 61,943.10 : x
  2. Step 2: Convert to fraction form
    61,943.10/86,895.30 = 61,943.10/x
  3. Step 3: Cross multiply
    61,943.10x = 86,895.30 × 61,943.10
  4. Step 4: Simplify right side
    61,943.10x = 5,382,564,257.43
  5. Step 5: Solve for x
    x = 5,382,564,257.43/61,943.10
  6. Step 6: Final answer
    x = 86,895.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.