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Finding the Fourth Proportional to 245,734.58, 368,601.60 and 77,269.68

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Solution

The fourth proportional to 245,734.58, 368,601.60 and 77,269.68 is: 115,904.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,734.58 : 368,601.60 = 77,269.68 : x
  2. Step 2: Convert to fraction form
    245,734.58/368,601.60 = 77,269.68/x
  3. Step 3: Cross multiply
    245,734.58x = 368,601.60 × 77,269.68
  4. Step 4: Simplify right side
    245,734.58x = 28,481,727,679.49
  5. Step 5: Solve for x
    x = 28,481,727,679.49/245,734.58
  6. Step 6: Final answer
    x = 115,904.44

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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.