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Finding the Fourth Proportional to 123,057.40, 184,586.10 and 66,924.40

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Solution

The fourth proportional to 123,057.40, 184,586.10 and 66,924.40 is: 100,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,057.40 : 184,586.10 = 66,924.40 : x
  2. Step 2: Convert to fraction form
    123,057.40/184,586.10 = 66,924.40/x
  3. Step 3: Cross multiply
    123,057.40x = 184,586.10 × 66,924.40
  4. Step 4: Simplify right side
    123,057.40x = 12,353,313,990.84
  5. Step 5: Solve for x
    x = 12,353,313,990.84/123,057.40
  6. Step 6: Final answer
    x = 100,386.60

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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.