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Finding the Fourth Proportional to 111,796.14, 154,281.09 and 61,495.14

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Solution

The fourth proportional to 111,796.14, 154,281.09 and 61,495.14 is: 84,864.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,796.14 : 154,281.09 = 61,495.14 : x
  2. Step 2: Convert to fraction form
    111,796.14/154,281.09 = 61,495.14/x
  3. Step 3: Cross multiply
    111,796.14x = 154,281.09 × 61,495.14
  4. Step 4: Simplify right side
    111,796.14x = 9,487,537,228.90
  5. Step 5: Solve for x
    x = 9,487,537,228.90/111,796.14
  6. Step 6: Final answer
    x = 84,864.62

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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.