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Finding the Fourth Proportional to 216,899.60, 325,003.80 and 160,912.40

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Solution

The fourth proportional to 216,899.60, 325,003.80 and 160,912.40 is: 241,112.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,899.60 : 325,003.80 = 160,912.40 : x
  2. Step 2: Convert to fraction form
    216,899.60/325,003.80 = 160,912.40/x
  3. Step 3: Cross multiply
    216,899.60x = 325,003.80 × 160,912.40
  4. Step 4: Simplify right side
    216,899.60x = 52,297,141,467.12
  5. Step 5: Solve for x
    x = 52,297,141,467.12/216,899.60
  6. Step 6: Final answer
    x = 241,112.21

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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.