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Finding the Fourth Proportional to 73,144.19, 100,938.93 and 39,610.19

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Solution

The fourth proportional to 73,144.19, 100,938.93 and 39,610.19 is: 54,662.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,144.19 : 100,938.93 = 39,610.19 : x
  2. Step 2: Convert to fraction form
    73,144.19/100,938.93 = 39,610.19/x
  3. Step 3: Cross multiply
    73,144.19x = 100,938.93 × 39,610.19
  4. Step 4: Simplify right side
    73,144.19x = 3,998,210,195.70
  5. Step 5: Solve for x
    x = 3,998,210,195.70/73,144.19
  6. Step 6: Final answer
    x = 54,662.03

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1.5x scale

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.