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Finding the Fourth Proportional to 191,597.73, 264,425.49 and 105,565.36

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Solution

The fourth proportional to 191,597.73, 264,425.49 and 105,565.36 is: 145,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,597.73 : 264,425.49 = 105,565.36 : x
  2. Step 2: Convert to fraction form
    191,597.73/264,425.49 = 105,565.36/x
  3. Step 3: Cross multiply
    191,597.73x = 264,425.49 × 105,565.36
  4. Step 4: Simplify right side
    191,597.73x = 27,914,170,988.09
  5. Step 5: Solve for x
    x = 27,914,170,988.09/191,597.73
  6. Step 6: Final answer
    x = 145,691.56

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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.