Home / 186,289.76-279,364.14-79,669.28

Finding the Fourth Proportional to 186,289.76, 279,364.14 and 79,669.28

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Solution

The fourth proportional to 186,289.76, 279,364.14 and 79,669.28 is: 119,473.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,289.76 : 279,364.14 = 79,669.28 : x
  2. Step 2: Convert to fraction form
    186,289.76/279,364.14 = 79,669.28/x
  3. Step 3: Cross multiply
    186,289.76x = 279,364.14 × 79,669.28
  4. Step 4: Simplify right side
    186,289.76x = 22,256,738,494.80
  5. Step 5: Solve for x
    x = 22,256,738,494.80/186,289.76
  6. Step 6: Final answer
    x = 119,473.77

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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.