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Finding the Fourth Proportional to 225,858.40, 338,787.60 and 92,670.10

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Solution

The fourth proportional to 225,858.40, 338,787.60 and 92,670.10 is: 139,005.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,858.40 : 338,787.60 = 92,670.10 : x
  2. Step 2: Convert to fraction form
    225,858.40/338,787.60 = 92,670.10/x
  3. Step 3: Cross multiply
    225,858.40x = 338,787.60 × 92,670.10
  4. Step 4: Simplify right side
    225,858.40x = 31,395,480,770.76
  5. Step 5: Solve for x
    x = 31,395,480,770.76/225,858.40
  6. Step 6: Final answer
    x = 139,005.15

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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.