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Finding the Fourth Proportional to 71,392.45, 107,060.99 and 38,094.35

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Solution

The fourth proportional to 71,392.45, 107,060.99 and 38,094.35 is: 57,126.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,392.45 : 107,060.99 = 38,094.35 : x
  2. Step 2: Convert to fraction form
    71,392.45/107,060.99 = 38,094.35/x
  3. Step 3: Cross multiply
    71,392.45x = 107,060.99 × 38,094.35
  4. Step 4: Simplify right side
    71,392.45x = 4,078,418,824.41
  5. Step 5: Solve for x
    x = 4,078,418,824.41/71,392.45
  6. Step 6: Final answer
    x = 57,126.75

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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.