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Finding the Fourth Proportional to 199,718.88, 275,485.50 and 151,867.32

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Solution

The fourth proportional to 199,718.88, 275,485.50 and 151,867.32 is: 209,480.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,718.88 : 275,485.50 = 151,867.32 : x
  2. Step 2: Convert to fraction form
    199,718.88/275,485.50 = 151,867.32/x
  3. Step 3: Cross multiply
    199,718.88x = 275,485.50 × 151,867.32
  4. Step 4: Simplify right side
    199,718.88x = 41,837,244,583.86
  5. Step 5: Solve for x
    x = 41,837,244,583.86/199,718.88
  6. Step 6: Final answer
    x = 209,480.67

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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.