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Finding the Fourth Proportional to 58,745.66, 81,111.14 and 36,115

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Solution

The fourth proportional to 58,745.66, 81,111.14 and 36,115 is: 49,864.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,745.66 : 81,111.14 = 36,115 : x
  2. Step 2: Convert to fraction form
    58,745.66/81,111.14 = 36,115/x
  3. Step 3: Cross multiply
    58,745.66x = 81,111.14 × 36,115
  4. Step 4: Simplify right side
    58,745.66x = 2,929,328,821.10
  5. Step 5: Solve for x
    x = 2,929,328,821.10/58,745.66
  6. Step 6: Final answer
    x = 49,864.60

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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.