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Finding the Fourth Proportional to 186,771.64, 278,700.73 and 166,642.76

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Solution

The fourth proportional to 186,771.64, 278,700.73 and 166,642.76 is: 248,664.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,771.64 : 278,700.73 = 166,642.76 : x
  2. Step 2: Convert to fraction form
    186,771.64/278,700.73 = 166,642.76/x
  3. Step 3: Cross multiply
    186,771.64x = 278,700.73 × 166,642.76
  4. Step 4: Simplify right side
    186,771.64x = 46,443,458,861.21
  5. Step 5: Solve for x
    x = 46,443,458,861.21/186,771.64
  6. Step 6: Final answer
    x = 248,664.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.