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Finding the Fourth Proportional to 65,879,608.47, 98,799,494.04 and 19,809,247.67

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Solution

The fourth proportional to 65,879,608.47, 98,799,494.04 and 19,809,247.67 is: 29,707,882.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,879,608.47 : 98,799,494.04 = 19,809,247.67 : x
  2. Step 2: Convert to fraction form
    65,879,608.47/98,799,494.04 = 19,809,247.67/x
  3. Step 3: Cross multiply
    65,879,608.47x = 98,799,494.04 × 19,809,247.67
  4. Step 4: Simplify right side
    65,879,608.47x = 1,957,143,647,319,136.25
  5. Step 5: Solve for x
    x = 1,957,143,647,319,136.25/65,879,608.47
  6. Step 6: Final answer
    x = 29,707,882.19

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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.