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Finding the Fourth Proportional to 117,565.27, 176,574.81 and 100,736.31

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Solution

The fourth proportional to 117,565.27, 176,574.81 and 100,736.31 is: 151,298.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,565.27 : 176,574.81 = 100,736.31 : x
  2. Step 2: Convert to fraction form
    117,565.27/176,574.81 = 100,736.31/x
  3. Step 3: Cross multiply
    117,565.27x = 176,574.81 × 100,736.31
  4. Step 4: Simplify right side
    117,565.27x = 17,787,493,663.64
  5. Step 5: Solve for x
    x = 17,787,493,663.64/117,565.27
  6. Step 6: Final answer
    x = 151,298.88

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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.