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Finding the Fourth Proportional to 89,062.77, 122,847.51 and 57,271.89

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Solution

The fourth proportional to 89,062.77, 122,847.51 and 57,271.89 is: 78,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,062.77 : 122,847.51 = 57,271.89 : x
  2. Step 2: Convert to fraction form
    89,062.77/122,847.51 = 57,271.89/x
  3. Step 3: Cross multiply
    89,062.77x = 122,847.51 × 57,271.89
  4. Step 4: Simplify right side
    89,062.77x = 7,035,709,079.49
  5. Step 5: Solve for x
    x = 7,035,709,079.49/89,062.77
  6. Step 6: Final answer
    x = 78,997.20

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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.