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Finding the Fourth Proportional to 89,993.86, 124,206.75 and 52,289.98

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Solution

The fourth proportional to 89,993.86, 124,206.75 and 52,289.98 is: 72,169.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,993.86 : 124,206.75 = 52,289.98 : x
  2. Step 2: Convert to fraction form
    89,993.86/124,206.75 = 52,289.98/x
  3. Step 3: Cross multiply
    89,993.86x = 124,206.75 × 52,289.98
  4. Step 4: Simplify right side
    89,993.86x = 6,494,768,473.37
  5. Step 5: Solve for x
    x = 6,494,768,473.37/89,993.86
  6. Step 6: Final answer
    x = 72,169.02

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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.