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Finding the Fourth Proportional to 113,874.87, 170,794.71 and 38,977.77

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Solution

The fourth proportional to 113,874.87, 170,794.71 and 38,977.77 is: 58,460.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,874.87 : 170,794.71 = 38,977.77 : x
  2. Step 2: Convert to fraction form
    113,874.87/170,794.71 = 38,977.77/x
  3. Step 3: Cross multiply
    113,874.87x = 170,794.71 × 38,977.77
  4. Step 4: Simplify right side
    113,874.87x = 6,657,196,923.60
  5. Step 5: Solve for x
    x = 6,657,196,923.60/113,874.87
  6. Step 6: Final answer
    x = 58,460.63

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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.