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Finding the Fourth Proportional to 184,412.16, 276,410.88 and 79,280.64

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Solution

The fourth proportional to 184,412.16, 276,410.88 and 79,280.64 is: 118,831.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,412.16 : 276,410.88 = 79,280.64 : x
  2. Step 2: Convert to fraction form
    184,412.16/276,410.88 = 79,280.64/x
  3. Step 3: Cross multiply
    184,412.16x = 276,410.88 × 79,280.64
  4. Step 4: Simplify right side
    184,412.16x = 21,914,031,469.36
  5. Step 5: Solve for x
    x = 21,914,031,469.36/184,412.16
  6. Step 6: Final answer
    x = 118,831.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.