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Finding the Fourth Proportional to 113,894.40, 170,938.80 and 50,811.60

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Solution

The fourth proportional to 113,894.40, 170,938.80 and 50,811.60 is: 76,260.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,894.40 : 170,938.80 = 50,811.60 : x
  2. Step 2: Convert to fraction form
    113,894.40/170,938.80 = 50,811.60/x
  3. Step 3: Cross multiply
    113,894.40x = 170,938.80 × 50,811.60
  4. Step 4: Simplify right side
    113,894.40x = 8,685,673,930.08
  5. Step 5: Solve for x
    x = 8,685,673,930.08/113,894.40
  6. Step 6: Final answer
    x = 76,260.76

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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.