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Finding the Fourth Proportional to 168,669.60, 253,018.80 and 57,861.60

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Solution

The fourth proportional to 168,669.60, 253,018.80 and 57,861.60 is: 86,797.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,669.60 : 253,018.80 = 57,861.60 : x
  2. Step 2: Convert to fraction form
    168,669.60/253,018.80 = 57,861.60/x
  3. Step 3: Cross multiply
    168,669.60x = 253,018.80 × 57,861.60
  4. Step 4: Simplify right side
    168,669.60x = 14,640,072,598.08
  5. Step 5: Solve for x
    x = 14,640,072,598.08/168,669.60
  6. Step 6: Final answer
    x = 86,797.34

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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.