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Finding the Fourth Proportional to 296,260.40, 444,390.60 and 74,644.40

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Solution

The fourth proportional to 296,260.40, 444,390.60 and 74,644.40 is: 111,966.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,260.40 : 444,390.60 = 74,644.40 : x
  2. Step 2: Convert to fraction form
    296,260.40/444,390.60 = 74,644.40/x
  3. Step 3: Cross multiply
    296,260.40x = 444,390.60 × 74,644.40
  4. Step 4: Simplify right side
    296,260.40x = 33,171,269,702.64
  5. Step 5: Solve for x
    x = 33,171,269,702.64/296,260.40
  6. Step 6: Final answer
    x = 111,966.60

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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.