Home / 186,628.55-279,777.06-72,750.11

Finding the Fourth Proportional to 186,628.55, 279,777.06 and 72,750.11

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Solution

The fourth proportional to 186,628.55, 279,777.06 and 72,750.11 is: 109,060.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,628.55 : 279,777.06 = 72,750.11 : x
  2. Step 2: Convert to fraction form
    186,628.55/279,777.06 = 72,750.11/x
  3. Step 3: Cross multiply
    186,628.55x = 279,777.06 × 72,750.11
  4. Step 4: Simplify right side
    186,628.55x = 20,353,810,491.59
  5. Step 5: Solve for x
    x = 20,353,810,491.59/186,628.55
  6. Step 6: Final answer
    x = 109,060.54

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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.