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Finding the Fourth Proportional to 372,915.64, 559,454.46 and 136,257.94

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Solution

The fourth proportional to 372,915.64, 559,454.46 and 136,257.94 is: 204,416.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,915.64 : 559,454.46 = 136,257.94 : x
  2. Step 2: Convert to fraction form
    372,915.64/559,454.46 = 136,257.94/x
  3. Step 3: Cross multiply
    372,915.64x = 559,454.46 × 136,257.94
  4. Step 4: Simplify right side
    372,915.64x = 76,230,110,844.78
  5. Step 5: Solve for x
    x = 76,230,110,844.78/372,915.64
  6. Step 6: Final answer
    x = 204,416.50

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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.