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Finding the Fourth Proportional to 247,978.40, 341,838.27 and 194,170.01

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Solution

The fourth proportional to 247,978.40, 341,838.27 and 194,170.01 is: 267,663.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,978.40 : 341,838.27 = 194,170.01 : x
  2. Step 2: Convert to fraction form
    247,978.40/341,838.27 = 194,170.01/x
  3. Step 3: Cross multiply
    247,978.40x = 341,838.27 × 194,170.01
  4. Step 4: Simplify right side
    247,978.40x = 66,374,738,595.09
  5. Step 5: Solve for x
    x = 66,374,738,595.09/247,978.40
  6. Step 6: Final answer
    x = 267,663.39

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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.