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Finding the Fourth Proportional to 359,781.70, 539,578.44 and 106,994.06

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Solution

The fourth proportional to 359,781.70, 539,578.44 and 106,994.06 is: 160,463.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,781.70 : 539,578.44 = 106,994.06 : x
  2. Step 2: Convert to fraction form
    359,781.70/539,578.44 = 106,994.06/x
  3. Step 3: Cross multiply
    359,781.70x = 539,578.44 × 106,994.06
  4. Step 4: Simplify right side
    359,781.70x = 57,731,687,984.07
  5. Step 5: Solve for x
    x = 57,731,687,984.07/359,781.70
  6. Step 6: Final answer
    x = 160,463.10

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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.