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Finding the Fourth Proportional to 347,156.64, 479,120.52 and 194,203.32

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Solution

The fourth proportional to 347,156.64, 479,120.52 and 194,203.32 is: 268,025.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,156.64 : 479,120.52 = 194,203.32 : x
  2. Step 2: Convert to fraction form
    347,156.64/479,120.52 = 194,203.32/x
  3. Step 3: Cross multiply
    347,156.64x = 479,120.52 × 194,203.32
  4. Step 4: Simplify right side
    347,156.64x = 93,046,795,664.13
  5. Step 5: Solve for x
    x = 93,046,795,664.13/347,156.64
  6. Step 6: Final answer
    x = 268,025.40

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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.