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Finding the Fourth Proportional to 245,840.73, 368,818.14 and 77,356.68

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Solution

The fourth proportional to 245,840.73, 368,818.14 and 77,356.68 is: 116,052.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,840.73 : 368,818.14 = 77,356.68 : x
  2. Step 2: Convert to fraction form
    245,840.73/368,818.14 = 77,356.68/x
  3. Step 3: Cross multiply
    245,840.73x = 368,818.14 × 77,356.68
  4. Step 4: Simplify right side
    245,840.73x = 28,530,545,767.35
  5. Step 5: Solve for x
    x = 28,530,545,767.35/245,840.73
  6. Step 6: Final answer
    x = 116,052.97

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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.