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Finding the Fourth Proportional to 65,352,972.64, 98,040,098.60 and 19,299,499.80

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Solution

The fourth proportional to 65,352,972.64, 98,040,098.60 and 19,299,499.80 is: 28,952,391.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,352,972.64 : 98,040,098.60 = 19,299,499.80 : x
  2. Step 2: Convert to fraction form
    65,352,972.64/98,040,098.60 = 19,299,499.80/x
  3. Step 3: Cross multiply
    65,352,972.64x = 98,040,098.60 × 19,299,499.80
  4. Step 4: Simplify right side
    65,352,972.64x = 1,892,124,863,322,680.25
  5. Step 5: Solve for x
    x = 1,892,124,863,322,680.25/65,352,972.64
  6. Step 6: Final answer
    x = 28,952,391.71

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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.