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Finding the Fourth Proportional to 65,557,515.80, 98,147,316.90 and 65,557,515.80

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Solution

The fourth proportional to 65,557,515.80, 98,147,316.90 and 65,557,515.80 is: 98,147,316.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,557,515.80 : 98,147,316.90 = 65,557,515.80 : x
  2. Step 2: Convert to fraction form
    65,557,515.80/98,147,316.90 = 65,557,515.80/x
  3. Step 3: Cross multiply
    65,557,515.80x = 98,147,316.90 × 65,557,515.80
  4. Step 4: Simplify right side
    65,557,515.80x = 6,434,294,278,399,357
  5. Step 5: Solve for x
    x = 6,434,294,278,399,357/65,557,515.80
  6. Step 6: Final answer
    x = 98,147,316.90

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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.