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Finding the Fourth Proportional to 73,147, 100,947.18 and 41,315.08

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Solution

The fourth proportional to 73,147, 100,947.18 and 41,315.08 is: 57,017.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,147 : 100,947.18 = 41,315.08 : x
  2. Step 2: Convert to fraction form
    73,147/100,947.18 = 41,315.08/x
  3. Step 3: Cross multiply
    73,147x = 100,947.18 × 41,315.08
  4. Step 4: Simplify right side
    73,147x = 4,170,640,817.47
  5. Step 5: Solve for x
    x = 4,170,640,817.47/73,147
  6. Step 6: Final answer
    x = 57,017.25

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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.