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Finding the Fourth Proportional to 292,023.20, 403,078.20 and 171,190.64

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Solution

The fourth proportional to 292,023.20, 403,078.20 and 171,190.64 is: 236,293.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,023.20 : 403,078.20 = 171,190.64 : x
  2. Step 2: Convert to fraction form
    292,023.20/403,078.20 = 171,190.64/x
  3. Step 3: Cross multiply
    292,023.20x = 403,078.20 × 171,190.64
  4. Step 4: Simplify right side
    292,023.20x = 69,003,215,028.05
  5. Step 5: Solve for x
    x = 69,003,215,028.05/292,023.20
  6. Step 6: Final answer
    x = 236,293.61

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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.