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Finding the Fourth Proportional to 73,153, 100,951.16 and 39,619

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Solution

The fourth proportional to 73,153, 100,951.16 and 39,619 is: 54,674.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,153 : 100,951.16 = 39,619 : x
  2. Step 2: Convert to fraction form
    73,153/100,951.16 = 39,619/x
  3. Step 3: Cross multiply
    73,153x = 100,951.16 × 39,619
  4. Step 4: Simplify right side
    73,153x = 3,999,584,008.04
  5. Step 5: Solve for x
    x = 3,999,584,008.04/73,153
  6. Step 6: Final answer
    x = 54,674.23

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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.