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Finding the Fourth Proportional to 253,196.64, 379,597.73 and 126,771.79

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Solution

The fourth proportional to 253,196.64, 379,597.73 and 126,771.79 is: 190,058.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,196.64 : 379,597.73 = 126,771.79 : x
  2. Step 2: Convert to fraction form
    253,196.64/379,597.73 = 126,771.79/x
  3. Step 3: Cross multiply
    253,196.64x = 379,597.73 × 126,771.79
  4. Step 4: Simplify right side
    253,196.64x = 48,122,282,840.93
  5. Step 5: Solve for x
    x = 48,122,282,840.93/253,196.64
  6. Step 6: Final answer
    x = 190,058.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.