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Finding the Fourth Proportional to 186,093.42, 279,034.42 and 127,000.68

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Solution

The fourth proportional to 186,093.42, 279,034.42 and 127,000.68 is: 190,428.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,093.42 : 279,034.42 = 127,000.68 : x
  2. Step 2: Convert to fraction form
    186,093.42/279,034.42 = 127,000.68/x
  3. Step 3: Cross multiply
    186,093.42x = 279,034.42 × 127,000.68
  4. Step 4: Simplify right side
    186,093.42x = 35,437,561,083.41
  5. Step 5: Solve for x
    x = 35,437,561,083.41/186,093.42
  6. Step 6: Final answer
    x = 190,428.88

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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.