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Finding the Fourth Proportional to 339,215.61, 508,868.91 and 179,368.86

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Solution

The fourth proportional to 339,215.61, 508,868.91 and 179,368.86 is: 269,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,215.61 : 508,868.91 = 179,368.86 : x
  2. Step 2: Convert to fraction form
    339,215.61/508,868.91 = 179,368.86/x
  3. Step 3: Cross multiply
    339,215.61x = 508,868.91 × 179,368.86
  4. Step 4: Simplify right side
    339,215.61x = 91,275,236,276.14
  5. Step 5: Solve for x
    x = 91,275,236,276.14/339,215.61
  6. Step 6: Final answer
    x = 269,077.35

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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.