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Finding the Fourth Proportional to 95,099, 131,271.18 and 55,355

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Solution

The fourth proportional to 95,099, 131,271.18 and 55,355 is: 76,410.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,099 : 131,271.18 = 55,355 : x
  2. Step 2: Convert to fraction form
    95,099/131,271.18 = 55,355/x
  3. Step 3: Cross multiply
    95,099x = 131,271.18 × 55,355
  4. Step 4: Simplify right side
    95,099x = 7,266,516,168.90
  5. Step 5: Solve for x
    x = 7,266,516,168.90/95,099
  6. Step 6: Final answer
    x = 76,410.02

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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.