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Finding the Fourth Proportional to 339,705.01, 468,798.87 and 186,749.65

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Solution

The fourth proportional to 339,705.01, 468,798.87 and 186,749.65 is: 257,717.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,705.01 : 468,798.87 = 186,749.65 : x
  2. Step 2: Convert to fraction form
    339,705.01/468,798.87 = 186,749.65/x
  3. Step 3: Cross multiply
    339,705.01x = 468,798.87 × 186,749.65
  4. Step 4: Simplify right side
    339,705.01x = 87,548,022,548.90
  5. Step 5: Solve for x
    x = 87,548,022,548.90/339,705.01
  6. Step 6: Final answer
    x = 257,717.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.