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Finding the Fourth Proportional to 111,774.82, 154,252.17 and 61,475.14

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Solution

The fourth proportional to 111,774.82, 154,252.17 and 61,475.14 is: 84,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,774.82 : 154,252.17 = 61,475.14 : x
  2. Step 2: Convert to fraction form
    111,774.82/154,252.17 = 61,475.14/x
  3. Step 3: Cross multiply
    111,774.82x = 154,252.17 × 61,475.14
  4. Step 4: Simplify right side
    111,774.82x = 9,482,673,746.05
  5. Step 5: Solve for x
    x = 9,482,673,746.05/111,774.82
  6. Step 6: Final answer
    x = 84,837.30

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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.