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Finding the Fourth Proportional to 359,851.24, 539,739.78 and 119,939.22

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Solution

The fourth proportional to 359,851.24, 539,739.78 and 119,939.22 is: 179,896.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,851.24 : 539,739.78 = 119,939.22 : x
  2. Step 2: Convert to fraction form
    359,851.24/539,739.78 = 119,939.22/x
  3. Step 3: Cross multiply
    359,851.24x = 539,739.78 × 119,939.22
  4. Step 4: Simplify right side
    359,851.24x = 64,735,968,965.82
  5. Step 5: Solve for x
    x = 64,735,968,965.82/359,851.24
  6. Step 6: Final answer
    x = 179,896.47

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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.