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Finding the Fourth Proportional to 73,197.32, 109,802.46 and 20,607.32

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Solution

The fourth proportional to 73,197.32, 109,802.46 and 20,607.32 is: 30,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,197.32 : 109,802.46 = 20,607.32 : x
  2. Step 2: Convert to fraction form
    73,197.32/109,802.46 = 20,607.32/x
  3. Step 3: Cross multiply
    73,197.32x = 109,802.46 × 20,607.32
  4. Step 4: Simplify right side
    73,197.32x = 2,262,734,430.01
  5. Step 5: Solve for x
    x = 2,262,734,430.01/73,197.32
  6. Step 6: Final answer
    x = 30,912.80

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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.