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Finding the Fourth Proportional to 92,221.88, 127,272.70 and 51,388.70

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Solution

The fourth proportional to 92,221.88, 127,272.70 and 51,388.70 is: 70,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,221.88 : 127,272.70 = 51,388.70 : x
  2. Step 2: Convert to fraction form
    92,221.88/127,272.70 = 51,388.70/x
  3. Step 3: Cross multiply
    92,221.88x = 127,272.70 × 51,388.70
  4. Step 4: Simplify right side
    92,221.88x = 6,540,378,598.49
  5. Step 5: Solve for x
    x = 6,540,378,598.49/92,221.88
  6. Step 6: Final answer
    x = 70,920.03

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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.