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Finding the Fourth Proportional to 127,796.60, 191,522.10 and 112,935.80

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Solution

The fourth proportional to 127,796.60, 191,522.10 and 112,935.80 is: 169,250.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,796.60 : 191,522.10 = 112,935.80 : x
  2. Step 2: Convert to fraction form
    127,796.60/191,522.10 = 112,935.80/x
  3. Step 3: Cross multiply
    127,796.60x = 191,522.10 × 112,935.80
  4. Step 4: Simplify right side
    127,796.60x = 21,629,701,581.18
  5. Step 5: Solve for x
    x = 21,629,701,581.18/127,796.60
  6. Step 6: Final answer
    x = 169,250.99

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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.