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Finding the Fourth Proportional to 344,143.16, 516,347.18 and 166,636.52

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Solution

The fourth proportional to 344,143.16, 516,347.18 and 166,636.52 is: 250,018.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,143.16 : 516,347.18 = 166,636.52 : x
  2. Step 2: Convert to fraction form
    344,143.16/516,347.18 = 166,636.52/x
  3. Step 3: Cross multiply
    344,143.16x = 516,347.18 × 166,636.52
  4. Step 4: Simplify right side
    344,143.16x = 86,042,297,187.01
  5. Step 5: Solve for x
    x = 86,042,297,187.01/344,143.16
  6. Step 6: Final answer
    x = 250,018.91

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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.