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Finding the Fourth Proportional to 68,775.77, 103,129.63 and 24,395.87

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Solution

The fourth proportional to 68,775.77, 103,129.63 and 24,395.87 is: 36,581.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,775.77 : 103,129.63 = 24,395.87 : x
  2. Step 2: Convert to fraction form
    68,775.77/103,129.63 = 24,395.87/x
  3. Step 3: Cross multiply
    68,775.77x = 103,129.63 × 24,395.87
  4. Step 4: Simplify right side
    68,775.77x = 2,515,937,243.46
  5. Step 5: Solve for x
    x = 2,515,937,243.46/68,775.77
  6. Step 6: Final answer
    x = 36,581.74

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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.