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Finding the Fourth Proportional to 340,861.52, 470,392.20 and 187,905.20

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Solution

The fourth proportional to 340,861.52, 470,392.20 and 187,905.20 is: 259,311.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,861.52 : 470,392.20 = 187,905.20 : x
  2. Step 2: Convert to fraction form
    340,861.52/470,392.20 = 187,905.20/x
  3. Step 3: Cross multiply
    340,861.52x = 470,392.20 × 187,905.20
  4. Step 4: Simplify right side
    340,861.52x = 88,389,140,419.44
  5. Step 5: Solve for x
    x = 88,389,140,419.44/340,861.52
  6. Step 6: Final answer
    x = 259,311.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.