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Finding the Fourth Proportional to 161,534.69, 222,912.91 and 89,912.87

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Solution

The fourth proportional to 161,534.69, 222,912.91 and 89,912.87 is: 124,077.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,534.69 : 222,912.91 = 89,912.87 : x
  2. Step 2: Convert to fraction form
    161,534.69/222,912.91 = 89,912.87/x
  3. Step 3: Cross multiply
    161,534.69x = 222,912.91 × 89,912.87
  4. Step 4: Simplify right side
    161,534.69x = 20,042,739,498.15
  5. Step 5: Solve for x
    x = 20,042,739,498.15/161,534.69
  6. Step 6: Final answer
    x = 124,077.00

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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.