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Finding the Fourth Proportional to 111,827, 154,321.26 and 61,526

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Solution

The fourth proportional to 111,827, 154,321.26 and 61,526 is: 84,905.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,827 : 154,321.26 = 61,526 : x
  2. Step 2: Convert to fraction form
    111,827/154,321.26 = 61,526/x
  3. Step 3: Cross multiply
    111,827x = 154,321.26 × 61,526
  4. Step 4: Simplify right side
    111,827x = 9,494,769,842.76
  5. Step 5: Solve for x
    x = 9,494,769,842.76/111,827
  6. Step 6: Final answer
    x = 84,905.88

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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.