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Finding the Fourth Proportional to 359,758.99, 539,544.45 and 106,971.40

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Solution

The fourth proportional to 359,758.99, 539,544.45 and 106,971.40 is: 160,429.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,758.99 : 539,544.45 = 106,971.40 : x
  2. Step 2: Convert to fraction form
    359,758.99/539,544.45 = 106,971.40/x
  3. Step 3: Cross multiply
    359,758.99x = 539,544.45 × 106,971.40
  4. Step 4: Simplify right side
    359,758.99x = 57,715,822,481.01
  5. Step 5: Solve for x
    x = 57,715,822,481.01/359,758.99
  6. Step 6: Final answer
    x = 160,429.13

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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.