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Finding the Fourth Proportional to 161,430.87, 222,774.60 and 89,810.88

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Solution

The fourth proportional to 161,430.87, 222,774.60 and 89,810.88 is: 123,939.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,430.87 : 222,774.60 = 89,810.88 : x
  2. Step 2: Convert to fraction form
    161,430.87/222,774.60 = 89,810.88/x
  3. Step 3: Cross multiply
    161,430.87x = 222,774.60 × 89,810.88
  4. Step 4: Simplify right side
    161,430.87x = 20,007,582,369.03
  5. Step 5: Solve for x
    x = 20,007,582,369.03/161,430.87
  6. Step 6: Final answer
    x = 123,939.01

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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.