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Finding the Fourth Proportional to 359,690.82, 539,419.42 and 119,740.26

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Solution

The fourth proportional to 359,690.82, 539,419.42 and 119,740.26 is: 179,571.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,690.82 : 539,419.42 = 119,740.26 : x
  2. Step 2: Convert to fraction form
    359,690.82/539,419.42 = 119,740.26/x
  3. Step 3: Cross multiply
    359,690.82x = 539,419.42 × 119,740.26
  4. Step 4: Simplify right side
    359,690.82x = 64,590,221,599.85
  5. Step 5: Solve for x
    x = 64,590,221,599.85/359,690.82
  6. Step 6: Final answer
    x = 179,571.50

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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.