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Finding the Fourth Proportional to 58,773.99, 81,108.11 and 31,916.50

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Solution

The fourth proportional to 58,773.99, 81,108.11 and 31,916.50 is: 44,044.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,773.99 : 81,108.11 = 31,916.50 : x
  2. Step 2: Convert to fraction form
    58,773.99/81,108.11 = 31,916.50/x
  3. Step 3: Cross multiply
    58,773.99x = 81,108.11 × 31,916.50
  4. Step 4: Simplify right side
    58,773.99x = 2,588,686,992.82
  5. Step 5: Solve for x
    x = 2,588,686,992.82/58,773.99
  6. Step 6: Final answer
    x = 44,044.77

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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.