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Finding the Fourth Proportional to 92,222.80, 138,334.20 and 83,912.20

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Solution

The fourth proportional to 92,222.80, 138,334.20 and 83,912.20 is: 125,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,222.80 : 138,334.20 = 83,912.20 : x
  2. Step 2: Convert to fraction form
    92,222.80/138,334.20 = 83,912.20/x
  3. Step 3: Cross multiply
    92,222.80x = 138,334.20 × 83,912.20
  4. Step 4: Simplify right side
    92,222.80x = 11,607,927,057.24
  5. Step 5: Solve for x
    x = 11,607,927,057.24/92,222.80
  6. Step 6: Final answer
    x = 125,868.30

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1.5x scale

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.