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Finding the Fourth Proportional to 84,092.28, 115,926.77 and 66,156.14

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Solution

The fourth proportional to 84,092.28, 115,926.77 and 66,156.14 is: 91,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,092.28 : 115,926.77 = 66,156.14 : x
  2. Step 2: Convert to fraction form
    84,092.28/115,926.77 = 66,156.14/x
  3. Step 3: Cross multiply
    84,092.28x = 115,926.77 × 66,156.14
  4. Step 4: Simplify right side
    84,092.28x = 7,669,266,715.45
  5. Step 5: Solve for x
    x = 7,669,266,715.45/84,092.28
  6. Step 6: Final answer
    x = 91,200.60

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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.