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Finding the Fourth Proportional to 392,559.66, 589,061.79 and 167,900.07

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Solution

The fourth proportional to 392,559.66, 589,061.79 and 167,900.07 is: 251,945.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,559.66 : 589,061.79 = 167,900.07 : x
  2. Step 2: Convert to fraction form
    392,559.66/589,061.79 = 167,900.07/x
  3. Step 3: Cross multiply
    392,559.66x = 589,061.79 × 167,900.07
  4. Step 4: Simplify right side
    392,559.66x = 98,903,515,775.33
  5. Step 5: Solve for x
    x = 98,903,515,775.33/392,559.66
  6. Step 6: Final answer
    x = 251,945.18

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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.