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Finding the Fourth Proportional to 73,168.40, 109,665.48 and 35,193.80

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Solution

The fourth proportional to 73,168.40, 109,665.48 and 35,193.80 is: 52,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,168.40 : 109,665.48 = 35,193.80 : x
  2. Step 2: Convert to fraction form
    73,168.40/109,665.48 = 35,193.80/x
  3. Step 3: Cross multiply
    73,168.40x = 109,665.48 × 35,193.80
  4. Step 4: Simplify right side
    73,168.40x = 3,859,544,970.02
  5. Step 5: Solve for x
    x = 3,859,544,970.02/73,168.40
  6. Step 6: Final answer
    x = 52,748.80

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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.