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Finding the Fourth Proportional to 161,290.22, 222,570.12 and 89,668.40

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Solution

The fourth proportional to 161,290.22, 222,570.12 and 89,668.40 is: 123,736.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,290.22 : 222,570.12 = 89,668.40 : x
  2. Step 2: Convert to fraction form
    161,290.22/222,570.12 = 89,668.40/x
  3. Step 3: Cross multiply
    161,290.22x = 222,570.12 × 89,668.40
  4. Step 4: Simplify right side
    161,290.22x = 19,957,506,548.21
  5. Step 5: Solve for x
    x = 19,957,506,548.21/161,290.22
  6. Step 6: Final answer
    x = 123,736.62

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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.