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Finding the Fourth Proportional to 168,379.36, 232,368.35 and 91,903.21

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Solution

The fourth proportional to 168,379.36, 232,368.35 and 91,903.21 is: 126,829.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,379.36 : 232,368.35 = 91,903.21 : x
  2. Step 2: Convert to fraction form
    168,379.36/232,368.35 = 91,903.21/x
  3. Step 3: Cross multiply
    168,379.36x = 232,368.35 × 91,903.21
  4. Step 4: Simplify right side
    168,379.36x = 21,355,396,226.97
  5. Step 5: Solve for x
    x = 21,355,396,226.97/168,379.36
  6. Step 6: Final answer
    x = 126,829.06

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1.5x scale

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.