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Finding the Fourth Proportional to 58,867.83, 81,267.71 and 45,408.87

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Solution

The fourth proportional to 58,867.83, 81,267.71 and 45,408.87 is: 62,687.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,867.83 : 81,267.71 = 45,408.87 : x
  2. Step 2: Convert to fraction form
    58,867.83/81,267.71 = 45,408.87/x
  3. Step 3: Cross multiply
    58,867.83x = 81,267.71 × 45,408.87
  4. Step 4: Simplify right side
    58,867.83x = 3,690,274,651.54
  5. Step 5: Solve for x
    x = 3,690,274,651.54/58,867.83
  6. Step 6: Final answer
    x = 62,687.46

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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.