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Finding the Fourth Proportional to 341,866.56, 512,800.20 and 89,146.83

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Solution

The fourth proportional to 341,866.56, 512,800.20 and 89,146.83 is: 133,720.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,866.56 : 512,800.20 = 89,146.83 : x
  2. Step 2: Convert to fraction form
    341,866.56/512,800.20 = 89,146.83/x
  3. Step 3: Cross multiply
    341,866.56x = 512,800.20 × 89,146.83
  4. Step 4: Simplify right side
    341,866.56x = 45,714,512,253.37
  5. Step 5: Solve for x
    x = 45,714,512,253.37/341,866.56
  6. Step 6: Final answer
    x = 133,720.34

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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.