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Finding the Fourth Proportional to 567,372.16, 851,055.60 and 168,015.20

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Solution

The fourth proportional to 567,372.16, 851,055.60 and 168,015.20 is: 252,022.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,372.16 : 851,055.60 = 168,015.20 : x
  2. Step 2: Convert to fraction form
    567,372.16/851,055.60 = 168,015.20/x
  3. Step 3: Cross multiply
    567,372.16x = 851,055.60 × 168,015.20
  4. Step 4: Simplify right side
    567,372.16x = 142,990,276,845.12
  5. Step 5: Solve for x
    x = 142,990,276,845.12/567,372.16
  6. Step 6: Final answer
    x = 252,022.02

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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.