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Finding the Fourth Proportional to 57,861.78, 86,748.93 and 46,168.62

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Solution

The fourth proportional to 57,861.78, 86,748.93 and 46,168.62 is: 69,218.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,861.78 : 86,748.93 = 46,168.62 : x
  2. Step 2: Convert to fraction form
    57,861.78/86,748.93 = 46,168.62/x
  3. Step 3: Cross multiply
    57,861.78x = 86,748.93 × 46,168.62
  4. Step 4: Simplify right side
    57,861.78x = 4,005,078,384.58
  5. Step 5: Solve for x
    x = 4,005,078,384.58/57,861.78
  6. Step 6: Final answer
    x = 69,218.03

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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.