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Finding the Fourth Proportional to 73,192.32, 109,794.96 and 20,602.32

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Solution

The fourth proportional to 73,192.32, 109,794.96 and 20,602.32 is: 30,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,192.32 : 109,794.96 = 20,602.32 : x
  2. Step 2: Convert to fraction form
    73,192.32/109,794.96 = 20,602.32/x
  3. Step 3: Cross multiply
    73,192.32x = 109,794.96 × 20,602.32
  4. Step 4: Simplify right side
    73,192.32x = 2,262,030,900.31
  5. Step 5: Solve for x
    x = 2,262,030,900.31/73,192.32
  6. Step 6: Final answer
    x = 30,905.30

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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.