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Finding the Fourth Proportional to 290,077.07, 400,300.11 and 161,008.02

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Solution

The fourth proportional to 290,077.07, 400,300.11 and 161,008.02 is: 222,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,077.07 : 400,300.11 = 161,008.02 : x
  2. Step 2: Convert to fraction form
    290,077.07/400,300.11 = 161,008.02/x
  3. Step 3: Cross multiply
    290,077.07x = 400,300.11 × 161,008.02
  4. Step 4: Simplify right side
    290,077.07x = 64,451,528,116.88
  5. Step 5: Solve for x
    x = 64,451,528,116.88/290,077.07
  6. Step 6: Final answer
    x = 222,187.60

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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.