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Finding the Fourth Proportional to 111,345.67, 166,977.06 and 44,763.40

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Solution

The fourth proportional to 111,345.67, 166,977.06 and 44,763.40 is: 67,128.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,345.67 : 166,977.06 = 44,763.40 : x
  2. Step 2: Convert to fraction form
    111,345.67/166,977.06 = 44,763.40/x
  3. Step 3: Cross multiply
    111,345.67x = 166,977.06 × 44,763.40
  4. Step 4: Simplify right side
    111,345.67x = 7,474,460,927.60
  5. Step 5: Solve for x
    x = 7,474,460,927.60/111,345.67
  6. Step 6: Final answer
    x = 67,128.44

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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.