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Finding the Fourth Proportional to 359,457.20, 539,262.34 and 106,738.42

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Solution

The fourth proportional to 359,457.20, 539,262.34 and 106,738.42 is: 160,130.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,457.20 : 539,262.34 = 106,738.42 : x
  2. Step 2: Convert to fraction form
    359,457.20/539,262.34 = 106,738.42/x
  3. Step 3: Cross multiply
    359,457.20x = 539,262.34 × 106,738.42
  4. Step 4: Simplify right side
    359,457.20x = 57,560,010,137.10
  5. Step 5: Solve for x
    x = 57,560,010,137.10/359,457.20
  6. Step 6: Final answer
    x = 160,130.36

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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.