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Finding the Fourth Proportional to 168,291.75, 232,242.31 and 91,810.85

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Solution

The fourth proportional to 168,291.75, 232,242.31 and 91,810.85 is: 126,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,291.75 : 232,242.31 = 91,810.85 : x
  2. Step 2: Convert to fraction form
    168,291.75/232,242.31 = 91,810.85/x
  3. Step 3: Cross multiply
    168,291.75x = 232,242.31 × 91,810.85
  4. Step 4: Simplify right side
    168,291.75x = 21,322,363,428.01
  5. Step 5: Solve for x
    x = 21,322,363,428.01/168,291.75
  6. Step 6: Final answer
    x = 126,698.80

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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.