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Finding the Fourth Proportional to 359,940.43, 539,855.16 and 120,058.53

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Solution

The fourth proportional to 359,940.43, 539,855.16 and 120,058.53 is: 180,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,940.43 : 539,855.16 = 120,058.53 : x
  2. Step 2: Convert to fraction form
    359,940.43/539,855.16 = 120,058.53/x
  3. Step 3: Cross multiply
    359,940.43x = 539,855.16 × 120,058.53
  4. Step 4: Simplify right side
    359,940.43x = 64,814,214,223.24
  5. Step 5: Solve for x
    x = 64,814,214,223.24/359,940.43
  6. Step 6: Final answer
    x = 180,069.28

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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.