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Finding the Fourth Proportional to 374,013.76, 561,185.12 and 196,479.52

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Solution

The fourth proportional to 374,013.76, 561,185.12 and 196,479.52 is: 294,805.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,013.76 : 561,185.12 = 196,479.52 : x
  2. Step 2: Convert to fraction form
    374,013.76/561,185.12 = 196,479.52/x
  3. Step 3: Cross multiply
    374,013.76x = 561,185.12 × 196,479.52
  4. Step 4: Simplify right side
    374,013.76x = 110,261,383,008.74
  5. Step 5: Solve for x
    x = 110,261,383,008.74/374,013.76
  6. Step 6: Final answer
    x = 294,805.69

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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.