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Finding the Fourth Proportional to 109,809.60, 164,665.80 and 50,614.80

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Solution

The fourth proportional to 109,809.60, 164,665.80 and 50,614.80 is: 75,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,809.60 : 164,665.80 = 50,614.80 : x
  2. Step 2: Convert to fraction form
    109,809.60/164,665.80 = 50,614.80/x
  3. Step 3: Cross multiply
    109,809.60x = 164,665.80 × 50,614.80
  4. Step 4: Simplify right side
    109,809.60x = 8,334,526,533.84
  5. Step 5: Solve for x
    x = 8,334,526,533.84/109,809.60
  6. Step 6: Final answer
    x = 75,899.80

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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.