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Finding the Fourth Proportional to 122,695.80, 184,043.70 and 93,171.30

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Solution

The fourth proportional to 122,695.80, 184,043.70 and 93,171.30 is: 139,756.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,695.80 : 184,043.70 = 93,171.30 : x
  2. Step 2: Convert to fraction form
    122,695.80/184,043.70 = 93,171.30/x
  3. Step 3: Cross multiply
    122,695.80x = 184,043.70 × 93,171.30
  4. Step 4: Simplify right side
    122,695.80x = 17,147,590,785.81
  5. Step 5: Solve for x
    x = 17,147,590,785.81/122,695.80
  6. Step 6: Final answer
    x = 139,756.95

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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.