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Finding the Fourth Proportional to 146,555.70, 219,826.71 and 61,131.30

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Solution

The fourth proportional to 146,555.70, 219,826.71 and 61,131.30 is: 91,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,555.70 : 219,826.71 = 61,131.30 : x
  2. Step 2: Convert to fraction form
    146,555.70/219,826.71 = 61,131.30/x
  3. Step 3: Cross multiply
    146,555.70x = 219,826.71 × 61,131.30
  4. Step 4: Simplify right side
    146,555.70x = 13,438,292,557.02
  5. Step 5: Solve for x
    x = 13,438,292,557.02/146,555.70
  6. Step 6: Final answer
    x = 91,694.10

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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.