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Finding the Fourth Proportional to 89,003, 122,824.26 and 55,469

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Solution

The fourth proportional to 89,003, 122,824.26 and 55,469 is: 76,547.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,003 : 122,824.26 = 55,469 : x
  2. Step 2: Convert to fraction form
    89,003/122,824.26 = 55,469/x
  3. Step 3: Cross multiply
    89,003x = 122,824.26 × 55,469
  4. Step 4: Simplify right side
    89,003x = 6,812,938,877.94
  5. Step 5: Solve for x
    x = 6,812,938,877.94/89,003
  6. Step 6: Final answer
    x = 76,547.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.