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Finding the Fourth Proportional to 113,790.60, 170,642.70 and 37,874.70

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Solution

The fourth proportional to 113,790.60, 170,642.70 and 37,874.70 is: 56,797.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,790.60 : 170,642.70 = 37,874.70 : x
  2. Step 2: Convert to fraction form
    113,790.60/170,642.70 = 37,874.70/x
  3. Step 3: Cross multiply
    113,790.60x = 170,642.70 × 37,874.70
  4. Step 4: Simplify right side
    113,790.60x = 6,463,041,069.69
  5. Step 5: Solve for x
    x = 6,463,041,069.69/113,790.60
  6. Step 6: Final answer
    x = 56,797.67

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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.