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Finding the Fourth Proportional to 231,393.20, 346,830.60 and 98,250.80

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Solution

The fourth proportional to 231,393.20, 346,830.60 and 98,250.80 is: 147,266.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,393.20 : 346,830.60 = 98,250.80 : x
  2. Step 2: Convert to fraction form
    231,393.20/346,830.60 = 98,250.80/x
  3. Step 3: Cross multiply
    231,393.20x = 346,830.60 × 98,250.80
  4. Step 4: Simplify right side
    231,393.20x = 34,076,383,914.48
  5. Step 5: Solve for x
    x = 34,076,383,914.48/231,393.20
  6. Step 6: Final answer
    x = 147,266.14

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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.