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Finding the Fourth Proportional to 183,816.40, 275,724.60 and 120,830.80

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Solution

The fourth proportional to 183,816.40, 275,724.60 and 120,830.80 is: 181,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,816.40 : 275,724.60 = 120,830.80 : x
  2. Step 2: Convert to fraction form
    183,816.40/275,724.60 = 120,830.80/x
  3. Step 3: Cross multiply
    183,816.40x = 275,724.60 × 120,830.80
  4. Step 4: Simplify right side
    183,816.40x = 33,316,023,997.68
  5. Step 5: Solve for x
    x = 33,316,023,997.68/183,816.40
  6. Step 6: Final answer
    x = 181,246.20

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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.