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Finding the Fourth Proportional to 73,104, 100,883.52 and 39,570

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Solution

The fourth proportional to 73,104, 100,883.52 and 39,570 is: 54,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,104 : 100,883.52 = 39,570 : x
  2. Step 2: Convert to fraction form
    73,104/100,883.52 = 39,570/x
  3. Step 3: Cross multiply
    73,104x = 100,883.52 × 39,570
  4. Step 4: Simplify right side
    73,104x = 3,991,960,886.40
  5. Step 5: Solve for x
    x = 3,991,960,886.40/73,104
  6. Step 6: Final answer
    x = 54,606.60

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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.