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Finding the Fourth Proportional to 115,191.99, 158,958.32 and 64,203.03

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Solution

The fourth proportional to 115,191.99, 158,958.32 and 64,203.03 is: 88,596.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,191.99 : 158,958.32 = 64,203.03 : x
  2. Step 2: Convert to fraction form
    115,191.99/158,958.32 = 64,203.03/x
  3. Step 3: Cross multiply
    115,191.99x = 158,958.32 × 64,203.03
  4. Step 4: Simplify right side
    115,191.99x = 10,205,605,466.69
  5. Step 5: Solve for x
    x = 10,205,605,466.69/115,191.99
  6. Step 6: Final answer
    x = 88,596.49

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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.