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Finding the Fourth Proportional to 73,406.07, 101,300.48 and 39,872.07

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Solution

The fourth proportional to 73,406.07, 101,300.48 and 39,872.07 is: 55,023.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,406.07 : 101,300.48 = 39,872.07 : x
  2. Step 2: Convert to fraction form
    73,406.07/101,300.48 = 39,872.07/x
  3. Step 3: Cross multiply
    73,406.07x = 101,300.48 × 39,872.07
  4. Step 4: Simplify right side
    73,406.07x = 4,039,059,630.23
  5. Step 5: Solve for x
    x = 4,039,059,630.23/73,406.07
  6. Step 6: Final answer
    x = 55,023.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.