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Finding the Fourth Proportional to 340,524.60, 510,422.40 and 115,676.70

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Solution

The fourth proportional to 340,524.60, 510,422.40 and 115,676.70 is: 173,391.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,524.60 : 510,422.40 = 115,676.70 : x
  2. Step 2: Convert to fraction form
    340,524.60/510,422.40 = 115,676.70/x
  3. Step 3: Cross multiply
    340,524.60x = 510,422.40 × 115,676.70
  4. Step 4: Simplify right side
    340,524.60x = 59,043,978,838.08
  5. Step 5: Solve for x
    x = 59,043,978,838.08/340,524.60
  6. Step 6: Final answer
    x = 173,391.23

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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.