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Finding the Fourth Proportional to 342,995.52, 514,519.94 and 103,090.73

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Solution

The fourth proportional to 342,995.52, 514,519.94 and 103,090.73 is: 154,644.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,995.52 : 514,519.94 = 103,090.73 : x
  2. Step 2: Convert to fraction form
    342,995.52/514,519.94 = 103,090.73/x
  3. Step 3: Cross multiply
    342,995.52x = 514,519.94 × 103,090.73
  4. Step 4: Simplify right side
    342,995.52x = 53,042,237,758.18
  5. Step 5: Solve for x
    x = 53,042,237,758.18/342,995.52
  6. Step 6: Final answer
    x = 154,644.11

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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.