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Finding the Fourth Proportional to 89,605.78, 134,376.67 and 29,623.25

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Solution

The fourth proportional to 89,605.78, 134,376.67 and 29,623.25 is: 44,424.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,605.78 : 134,376.67 = 29,623.25 : x
  2. Step 2: Convert to fraction form
    89,605.78/134,376.67 = 29,623.25/x
  3. Step 3: Cross multiply
    89,605.78x = 134,376.67 × 29,623.25
  4. Step 4: Simplify right side
    89,605.78x = 3,980,674,062.55
  5. Step 5: Solve for x
    x = 3,980,674,062.55/89,605.78
  6. Step 6: Final answer
    x = 44,424.30

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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.