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Finding the Fourth Proportional to 347,083.54, 520,031.16 and 189,422.71

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Solution

The fourth proportional to 347,083.54, 520,031.16 and 189,422.71 is: 283,809.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,083.54 : 520,031.16 = 189,422.71 : x
  2. Step 2: Convert to fraction form
    347,083.54/520,031.16 = 189,422.71/x
  3. Step 3: Cross multiply
    347,083.54x = 520,031.16 × 189,422.71
  4. Step 4: Simplify right side
    347,083.54x = 98,505,711,611.64
  5. Step 5: Solve for x
    x = 98,505,711,611.64/347,083.54
  6. Step 6: Final answer
    x = 283,809.80

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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.