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Finding the Fourth Proportional to 341,786.60, 512,679.90 and 152,246.60

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Solution

The fourth proportional to 341,786.60, 512,679.90 and 152,246.60 is: 228,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,786.60 : 512,679.90 = 152,246.60 : x
  2. Step 2: Convert to fraction form
    341,786.60/512,679.90 = 152,246.60/x
  3. Step 3: Cross multiply
    341,786.60x = 512,679.90 × 152,246.60
  4. Step 4: Simplify right side
    341,786.60x = 78,053,771,663.34
  5. Step 5: Solve for x
    x = 78,053,771,663.34/341,786.60
  6. Step 6: Final answer
    x = 228,369.90

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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.