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Finding the Fourth Proportional to 69,984,080.60, 98,078,489.80 and 69,984,080.60

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Solution

The fourth proportional to 69,984,080.60, 98,078,489.80 and 69,984,080.60 is: 98,078,489.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984,080.60 : 98,078,489.80 = 69,984,080.60 : x
  2. Step 2: Convert to fraction form
    69,984,080.60/98,078,489.80 = 69,984,080.60/x
  3. Step 3: Cross multiply
    69,984,080.60x = 98,078,489.80 × 69,984,080.60
  4. Step 4: Simplify right side
    69,984,080.60x = 6,863,932,935,289,477
  5. Step 5: Solve for x
    x = 6,863,932,935,289,477/69,984,080.60
  6. Step 6: Final answer
    x = 98,078,489.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.