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Finding the Fourth Proportional to 161,629.96, 223,045.86 and 89,034.88

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Solution

The fourth proportional to 161,629.96, 223,045.86 and 89,034.88 is: 122,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,629.96 : 223,045.86 = 89,034.88 : x
  2. Step 2: Convert to fraction form
    161,629.96/223,045.86 = 89,034.88/x
  3. Step 3: Cross multiply
    161,629.96x = 223,045.86 × 89,034.88
  4. Step 4: Simplify right side
    161,629.96x = 19,858,861,379.60
  5. Step 5: Solve for x
    x = 19,858,861,379.60/161,629.96
  6. Step 6: Final answer
    x = 122,866.21

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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.