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Finding the Fourth Proportional to 100,340.45, 150,510.37 and 25,460.45

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Solution

The fourth proportional to 100,340.45, 150,510.37 and 25,460.45 is: 38,190.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,340.45 : 150,510.37 = 25,460.45 : x
  2. Step 2: Convert to fraction form
    100,340.45/150,510.37 = 25,460.45/x
  3. Step 3: Cross multiply
    100,340.45x = 150,510.37 × 25,460.45
  4. Step 4: Simplify right side
    100,340.45x = 3,832,061,749.87
  5. Step 5: Solve for x
    x = 3,832,061,749.87/100,340.45
  6. Step 6: Final answer
    x = 38,190.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.