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Finding the Fourth Proportional to 82,390.37, 113,695.67 and 44,663.81

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Solution

The fourth proportional to 82,390.37, 113,695.67 and 44,663.81 is: 61,634.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,390.37 : 113,695.67 = 44,663.81 : x
  2. Step 2: Convert to fraction form
    82,390.37/113,695.67 = 44,663.81/x
  3. Step 3: Cross multiply
    82,390.37x = 113,695.67 × 44,663.81
  4. Step 4: Simplify right side
    82,390.37x = 5,078,081,579.38
  5. Step 5: Solve for x
    x = 5,078,081,579.38/82,390.37
  6. Step 6: Final answer
    x = 61,634.41

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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.