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Finding the Fourth Proportional to 186,407.70, 279,362.07 and 67,967.34

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Solution

The fourth proportional to 186,407.70, 279,362.07 and 67,967.34 is: 101,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,407.70 : 279,362.07 = 67,967.34 : x
  2. Step 2: Convert to fraction form
    186,407.70/279,362.07 = 67,967.34/x
  3. Step 3: Cross multiply
    186,407.70x = 279,362.07 × 67,967.34
  4. Step 4: Simplify right side
    186,407.70x = 18,987,496,794.79
  5. Step 5: Solve for x
    x = 18,987,496,794.79/186,407.70
  6. Step 6: Final answer
    x = 101,860.05

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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.