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Finding the Fourth Proportional to 97,455.59, 134,490.92 and 57,198.39

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Solution

The fourth proportional to 97,455.59, 134,490.92 and 57,198.39 is: 78,935.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,455.59 : 134,490.92 = 57,198.39 : x
  2. Step 2: Convert to fraction form
    97,455.59/134,490.92 = 57,198.39/x
  3. Step 3: Cross multiply
    97,455.59x = 134,490.92 × 57,198.39
  4. Step 4: Simplify right side
    97,455.59x = 7,692,664,093.62
  5. Step 5: Solve for x
    x = 7,692,664,093.62/97,455.59
  6. Step 6: Final answer
    x = 78,935.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.