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Finding the Fourth Proportional to 73,004.66, 109,496.06 and 20,407.32

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Solution

The fourth proportional to 73,004.66, 109,496.06 and 20,407.32 is: 30,607.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,004.66 : 109,496.06 = 20,407.32 : x
  2. Step 2: Convert to fraction form
    73,004.66/109,496.06 = 20,407.32/x
  3. Step 3: Cross multiply
    73,004.66x = 109,496.06 × 20,407.32
  4. Step 4: Simplify right side
    73,004.66x = 2,234,521,135.16
  5. Step 5: Solve for x
    x = 2,234,521,135.16/73,004.66
  6. Step 6: Final answer
    x = 30,607.92

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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.