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Finding the Fourth Proportional to 92,392.20, 127,512.90 and 52,108.20

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Solution

The fourth proportional to 92,392.20, 127,512.90 and 52,108.20 is: 71,915.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,392.20 : 127,512.90 = 52,108.20 : x
  2. Step 2: Convert to fraction form
    92,392.20/127,512.90 = 52,108.20/x
  3. Step 3: Cross multiply
    92,392.20x = 127,512.90 × 52,108.20
  4. Step 4: Simplify right side
    92,392.20x = 6,644,467,695.78
  5. Step 5: Solve for x
    x = 6,644,467,695.78/92,392.20
  6. Step 6: Final answer
    x = 71,915.89

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1.5x scale

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.