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Finding the Fourth Proportional to 123,116.40, 184,674.60 and 92,012.40

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Solution

The fourth proportional to 123,116.40, 184,674.60 and 92,012.40 is: 138,018.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,116.40 : 184,674.60 = 92,012.40 : x
  2. Step 2: Convert to fraction form
    123,116.40/184,674.60 = 92,012.40/x
  3. Step 3: Cross multiply
    123,116.40x = 184,674.60 × 92,012.40
  4. Step 4: Simplify right side
    123,116.40x = 16,992,353,165.04
  5. Step 5: Solve for x
    x = 16,992,353,165.04/123,116.40
  6. Step 6: Final answer
    x = 138,018.60

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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.