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Finding the Fourth Proportional to 68,661.81, 103,003.11 and 24,289.07

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Solution

The fourth proportional to 68,661.81, 103,003.11 and 24,289.07 is: 36,437.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,661.81 : 103,003.11 = 24,289.07 : x
  2. Step 2: Convert to fraction form
    68,661.81/103,003.11 = 24,289.07/x
  3. Step 3: Cross multiply
    68,661.81x = 103,003.11 × 24,289.07
  4. Step 4: Simplify right side
    68,661.81x = 2,501,849,233.99
  5. Step 5: Solve for x
    x = 2,501,849,233.99/68,661.81
  6. Step 6: Final answer
    x = 36,437.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.