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Finding the Fourth Proportional to 111,303.87, 166,844.04 and 55,184.77

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Solution

The fourth proportional to 111,303.87, 166,844.04 and 55,184.77 is: 82,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,303.87 : 166,844.04 = 55,184.77 : x
  2. Step 2: Convert to fraction form
    111,303.87/166,844.04 = 55,184.77/x
  3. Step 3: Cross multiply
    111,303.87x = 166,844.04 × 55,184.77
  4. Step 4: Simplify right side
    111,303.87x = 9,207,249,973.27
  5. Step 5: Solve for x
    x = 9,207,249,973.27/111,303.87
  6. Step 6: Final answer
    x = 82,721.74

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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.