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Finding the Fourth Proportional to 122,679.96, 184,019.94 and 100,646.10

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Solution

The fourth proportional to 122,679.96, 184,019.94 and 100,646.10 is: 150,969.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,679.96 : 184,019.94 = 100,646.10 : x
  2. Step 2: Convert to fraction form
    122,679.96/184,019.94 = 100,646.10/x
  3. Step 3: Cross multiply
    122,679.96x = 184,019.94 × 100,646.10
  4. Step 4: Simplify right side
    122,679.96x = 18,520,889,283.23
  5. Step 5: Solve for x
    x = 18,520,889,283.23/122,679.96
  6. Step 6: Final answer
    x = 150,969.15

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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.