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Finding the Fourth Proportional to 89,054.88, 122,923.08 and 51,354.24

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Solution

The fourth proportional to 89,054.88, 122,923.08 and 51,354.24 is: 70,884.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,054.88 : 122,923.08 = 51,354.24 : x
  2. Step 2: Convert to fraction form
    89,054.88/122,923.08 = 51,354.24/x
  3. Step 3: Cross multiply
    89,054.88x = 122,923.08 × 51,354.24
  4. Step 4: Simplify right side
    89,054.88x = 6,312,621,351.86
  5. Step 5: Solve for x
    x = 6,312,621,351.86/89,054.88
  6. Step 6: Final answer
    x = 70,884.62

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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.