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Finding the Fourth Proportional to 100,896.50, 150,971.08 and 63,155.90

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Solution

The fourth proportional to 100,896.50, 150,971.08 and 63,155.90 is: 94,499.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,896.50 : 150,971.08 = 63,155.90 : x
  2. Step 2: Convert to fraction form
    100,896.50/150,971.08 = 63,155.90/x
  3. Step 3: Cross multiply
    100,896.50x = 150,971.08 × 63,155.90
  4. Step 4: Simplify right side
    100,896.50x = 9,534,714,431.37
  5. Step 5: Solve for x
    x = 9,534,714,431.37/100,896.50
  6. Step 6: Final answer
    x = 94,499.95

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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.