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Finding the Fourth Proportional to 141,313.68, 194,957 and 91,042

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Solution

The fourth proportional to 141,313.68, 194,957 and 91,042 is: 125,601.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,313.68 : 194,957 = 91,042 : x
  2. Step 2: Convert to fraction form
    141,313.68/194,957 = 91,042/x
  3. Step 3: Cross multiply
    141,313.68x = 194,957 × 91,042
  4. Step 4: Simplify right side
    141,313.68x = 17,749,275,194
  5. Step 5: Solve for x
    x = 17,749,275,194/141,313.68
  6. Step 6: Final answer
    x = 125,601.96

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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.