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Finding the Fourth Proportional to 115,193.99, 158,961.07 and 64,205.03

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Solution

The fourth proportional to 115,193.99, 158,961.07 and 64,205.03 is: 88,599.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,193.99 : 158,961.07 = 64,205.03 : x
  2. Step 2: Convert to fraction form
    115,193.99/158,961.07 = 64,205.03/x
  3. Step 3: Cross multiply
    115,193.99x = 158,961.07 × 64,205.03
  4. Step 4: Simplify right side
    115,193.99x = 10,206,100,268.18
  5. Step 5: Solve for x
    x = 10,206,100,268.18/115,193.99
  6. Step 6: Final answer
    x = 88,599.24

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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.