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Finding the Fourth Proportional to 122,676.40, 184,014.60 and 102,993.40

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Solution

The fourth proportional to 122,676.40, 184,014.60 and 102,993.40 is: 154,490.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,676.40 : 184,014.60 = 102,993.40 : x
  2. Step 2: Convert to fraction form
    122,676.40/184,014.60 = 102,993.40/x
  3. Step 3: Cross multiply
    122,676.40x = 184,014.60 × 102,993.40
  4. Step 4: Simplify right side
    122,676.40x = 18,952,289,303.64
  5. Step 5: Solve for x
    x = 18,952,289,303.64/122,676.40
  6. Step 6: Final answer
    x = 154,490.10

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1.5x scale

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.