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Finding the Fourth Proportional to 112,464.60, 168,696.90 and 45,882.60

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Solution

The fourth proportional to 112,464.60, 168,696.90 and 45,882.60 is: 68,823.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,464.60 : 168,696.90 = 45,882.60 : x
  2. Step 2: Convert to fraction form
    112,464.60/168,696.90 = 45,882.60/x
  3. Step 3: Cross multiply
    112,464.60x = 168,696.90 × 45,882.60
  4. Step 4: Simplify right side
    112,464.60x = 7,740,252,383.94
  5. Step 5: Solve for x
    x = 7,740,252,383.94/112,464.60
  6. Step 6: Final answer
    x = 68,823.90

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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.