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Finding the Fourth Proportional to 211,270.54, 316,926.60 and 61,512.34

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Solution

The fourth proportional to 211,270.54, 316,926.60 and 61,512.34 is: 92,274.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,270.54 : 316,926.60 = 61,512.34 : x
  2. Step 2: Convert to fraction form
    211,270.54/316,926.60 = 61,512.34/x
  3. Step 3: Cross multiply
    211,270.54x = 316,926.60 × 61,512.34
  4. Step 4: Simplify right side
    211,270.54x = 19,494,896,774.24
  5. Step 5: Solve for x
    x = 19,494,896,774.24/211,270.54
  6. Step 6: Final answer
    x = 92,274.56

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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.