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Finding the Fourth Proportional to 89,203.60, 123,094.85 and 48,909

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Solution

The fourth proportional to 89,203.60, 123,094.85 and 48,909 is: 67,491.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,203.60 : 123,094.85 = 48,909 : x
  2. Step 2: Convert to fraction form
    89,203.60/123,094.85 = 48,909/x
  3. Step 3: Cross multiply
    89,203.60x = 123,094.85 × 48,909
  4. Step 4: Simplify right side
    89,203.60x = 6,020,446,018.65
  5. Step 5: Solve for x
    x = 6,020,446,018.65/89,203.60
  6. Step 6: Final answer
    x = 67,491.07

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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.