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Finding the Fourth Proportional to 113,834.70, 170,752.05 and 61,346.70

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Solution

The fourth proportional to 113,834.70, 170,752.05 and 61,346.70 is: 92,020.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,834.70 : 170,752.05 = 61,346.70 : x
  2. Step 2: Convert to fraction form
    113,834.70/170,752.05 = 61,346.70/x
  3. Step 3: Cross multiply
    113,834.70x = 170,752.05 × 61,346.70
  4. Step 4: Simplify right side
    113,834.70x = 10,475,074,785.74
  5. Step 5: Solve for x
    x = 10,475,074,785.74/113,834.70
  6. Step 6: Final answer
    x = 92,020.05

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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.