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Finding the Fourth Proportional to 359,851.69, 539,186.73 and 123,065.20

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Solution

The fourth proportional to 359,851.69, 539,186.73 and 123,065.20 is: 184,395.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,851.69 : 539,186.73 = 123,065.20 : x
  2. Step 2: Convert to fraction form
    359,851.69/539,186.73 = 123,065.20/x
  3. Step 3: Cross multiply
    359,851.69x = 539,186.73 × 123,065.20
  4. Step 4: Simplify right side
    359,851.69x = 66,355,122,764.80
  5. Step 5: Solve for x
    x = 66,355,122,764.80/359,851.69
  6. Step 6: Final answer
    x = 184,395.75

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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.