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Finding the Fourth Proportional to 251,334.34, 376,883.08 and 91,297.48

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Solution

The fourth proportional to 251,334.34, 376,883.08 and 91,297.48 is: 136,903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,334.34 : 376,883.08 = 91,297.48 : x
  2. Step 2: Convert to fraction form
    251,334.34/376,883.08 = 91,297.48/x
  3. Step 3: Cross multiply
    251,334.34x = 376,883.08 × 91,297.48
  4. Step 4: Simplify right side
    251,334.34x = 34,408,474,994.84
  5. Step 5: Solve for x
    x = 34,408,474,994.84/251,334.34
  6. Step 6: Final answer
    x = 136,903.20

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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.