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Finding the Fourth Proportional to 89,090.79, 122,945.31 and 48,806.01

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Solution

The fourth proportional to 89,090.79, 122,945.31 and 48,806.01 is: 67,352.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,090.79 : 122,945.31 = 48,806.01 : x
  2. Step 2: Convert to fraction form
    89,090.79/122,945.31 = 48,806.01/x
  3. Step 3: Cross multiply
    89,090.79x = 122,945.31 × 48,806.01
  4. Step 4: Simplify right side
    89,090.79x = 6,000,470,029.31
  5. Step 5: Solve for x
    x = 6,000,470,029.31/89,090.79
  6. Step 6: Final answer
    x = 67,352.30

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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.