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Finding the Fourth Proportional to 89,879.73, 124,096.73 and 55,903.49

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Solution

The fourth proportional to 89,879.73, 124,096.73 and 55,903.49 is: 77,185.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,879.73 : 124,096.73 = 55,903.49 : x
  2. Step 2: Convert to fraction form
    89,879.73/124,096.73 = 55,903.49/x
  3. Step 3: Cross multiply
    89,879.73x = 124,096.73 × 55,903.49
  4. Step 4: Simplify right side
    89,879.73x = 6,937,440,341.64
  5. Step 5: Solve for x
    x = 6,937,440,341.64/89,879.73
  6. Step 6: Final answer
    x = 77,185.81

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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.