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Finding the Fourth Proportional to 100,616.28, 150,938.91 and 30,501.06

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Solution

The fourth proportional to 100,616.28, 150,938.91 and 30,501.06 is: 45,755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,616.28 : 150,938.91 = 30,501.06 : x
  2. Step 2: Convert to fraction form
    100,616.28/150,938.91 = 30,501.06/x
  3. Step 3: Cross multiply
    100,616.28x = 150,938.91 × 30,501.06
  4. Step 4: Simplify right side
    100,616.28x = 4,603,796,750.24
  5. Step 5: Solve for x
    x = 4,603,796,750.24/100,616.28
  6. Step 6: Final answer
    x = 45,755.98

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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.