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Finding the Fourth Proportional to 168,038.60, 252,057.90 and 43,379.60

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Solution

The fourth proportional to 168,038.60, 252,057.90 and 43,379.60 is: 65,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,038.60 : 252,057.90 = 43,379.60 : x
  2. Step 2: Convert to fraction form
    168,038.60/252,057.90 = 43,379.60/x
  3. Step 3: Cross multiply
    168,038.60x = 252,057.90 × 43,379.60
  4. Step 4: Simplify right side
    168,038.60x = 10,934,170,878.84
  5. Step 5: Solve for x
    x = 10,934,170,878.84/168,038.60
  6. Step 6: Final answer
    x = 65,069.40

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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.