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Finding the Fourth Proportional to 186,504, 279,424.31 and 107,454.89

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Solution

The fourth proportional to 186,504, 279,424.31 and 107,454.89 is: 160,991.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,504 : 279,424.31 = 107,454.89 : x
  2. Step 2: Convert to fraction form
    186,504/279,424.31 = 107,454.89/x
  3. Step 3: Cross multiply
    186,504x = 279,424.31 × 107,454.89
  4. Step 4: Simplify right side
    186,504x = 30,025,506,559.98
  5. Step 5: Solve for x
    x = 30,025,506,559.98/186,504
  6. Step 6: Final answer
    x = 160,991.22

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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.