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Finding the Fourth Proportional to 372,157.56, 513,566.46 and 211,027.32

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Solution

The fourth proportional to 372,157.56, 513,566.46 and 211,027.32 is: 291,211.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,157.56 : 513,566.46 = 211,027.32 : x
  2. Step 2: Convert to fraction form
    372,157.56/513,566.46 = 211,027.32/x
  3. Step 3: Cross multiply
    372,157.56x = 513,566.46 × 211,027.32
  4. Step 4: Simplify right side
    372,157.56x = 108,376,553,695.69
  5. Step 5: Solve for x
    x = 108,376,553,695.69/372,157.56
  6. Step 6: Final answer
    x = 291,211.48

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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.