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Finding the Fourth Proportional to 73,904.96, 110,832.24 and 21,300.32

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Solution

The fourth proportional to 73,904.96, 110,832.24 and 21,300.32 is: 31,943.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,904.96 : 110,832.24 = 21,300.32 : x
  2. Step 2: Convert to fraction form
    73,904.96/110,832.24 = 21,300.32/x
  3. Step 3: Cross multiply
    73,904.96x = 110,832.24 × 21,300.32
  4. Step 4: Simplify right side
    73,904.96x = 2,360,762,178.32
  5. Step 5: Solve for x
    x = 2,360,762,178.32/73,904.96
  6. Step 6: Final answer
    x = 31,943.22

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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.