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Finding the Fourth Proportional to 185,058.72, 255,318.24 and 120,498.48

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Solution

The fourth proportional to 185,058.72, 255,318.24 and 120,498.48 is: 166,247.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,058.72 : 255,318.24 = 120,498.48 : x
  2. Step 2: Convert to fraction form
    185,058.72/255,318.24 = 120,498.48/x
  3. Step 3: Cross multiply
    185,058.72x = 255,318.24 × 120,498.48
  4. Step 4: Simplify right side
    185,058.72x = 30,765,459,836.28
  5. Step 5: Solve for x
    x = 30,765,459,836.28/185,058.72
  6. Step 6: Final answer
    x = 166,247.02

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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.