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Finding the Fourth Proportional to 75,558,896.20, 105,984,008.60 and 75,558,896.20

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Solution

The fourth proportional to 75,558,896.20, 105,984,008.60 and 75,558,896.20 is: 105,984,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,558,896.20 : 105,984,008.60 = 75,558,896.20 : x
  2. Step 2: Convert to fraction form
    75,558,896.20/105,984,008.60 = 75,558,896.20/x
  3. Step 3: Cross multiply
    75,558,896.20x = 105,984,008.60 × 75,558,896.20
  4. Step 4: Simplify right side
    75,558,896.20x = 8,008,034,704,667,307
  5. Step 5: Solve for x
    x = 8,008,034,704,667,307/75,558,896.20
  6. Step 6: Final answer
    x = 105,984,008.60

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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.