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Finding the Fourth Proportional to 339,064.61, 467,915.09 and 186,117.10

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Solution

The fourth proportional to 339,064.61, 467,915.09 and 186,117.10 is: 256,844.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,064.61 : 467,915.09 = 186,117.10 : x
  2. Step 2: Convert to fraction form
    339,064.61/467,915.09 = 186,117.10/x
  3. Step 3: Cross multiply
    339,064.61x = 467,915.09 × 186,117.10
  4. Step 4: Simplify right side
    339,064.61x = 87,086,997,496.67
  5. Step 5: Solve for x
    x = 87,086,997,496.67/339,064.61
  6. Step 6: Final answer
    x = 256,844.85

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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.