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Finding the Fourth Proportional to 89,061,664.90, 124,865,489.90 and 89,061,664.90

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Solution

The fourth proportional to 89,061,664.90, 124,865,489.90 and 89,061,664.90 is: 124,865,489.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,061,664.90 : 124,865,489.90 = 89,061,664.90 : x
  2. Step 2: Convert to fraction form
    89,061,664.90/124,865,489.90 = 89,061,664.90/x
  3. Step 3: Cross multiply
    89,061,664.90x = 124,865,489.90 × 89,061,664.90
  4. Step 4: Simplify right side
    89,061,664.90x = 11,120,728,419,048,136
  5. Step 5: Solve for x
    x = 11,120,728,419,048,136/89,061,664.90
  6. Step 6: Final answer
    x = 124,865,489.90

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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.