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Finding the Fourth Proportional to 89,992.86, 124,205.37 and 52,288.98

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Solution

The fourth proportional to 89,992.86, 124,205.37 and 52,288.98 is: 72,167.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,992.86 : 124,205.37 = 52,288.98 : x
  2. Step 2: Convert to fraction form
    89,992.86/124,205.37 = 52,288.98/x
  3. Step 3: Cross multiply
    89,992.86x = 124,205.37 × 52,288.98
  4. Step 4: Simplify right side
    89,992.86x = 6,494,572,107.82
  5. Step 5: Solve for x
    x = 6,494,572,107.82/89,992.86
  6. Step 6: Final answer
    x = 72,167.64

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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.