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Finding the Fourth Proportional to 270,561.72, 373,290.54 and 163,164.60

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Solution

The fourth proportional to 270,561.72, 373,290.54 and 163,164.60 is: 225,116.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,561.72 : 373,290.54 = 163,164.60 : x
  2. Step 2: Convert to fraction form
    270,561.72/373,290.54 = 163,164.60/x
  3. Step 3: Cross multiply
    270,561.72x = 373,290.54 × 163,164.60
  4. Step 4: Simplify right side
    270,561.72x = 60,907,801,642.88
  5. Step 5: Solve for x
    x = 60,907,801,642.88/270,561.72
  6. Step 6: Final answer
    x = 225,116.11

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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.