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Finding the Fourth Proportional to 133,671, 184,465.98 and 79,958.28

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Solution

The fourth proportional to 133,671, 184,465.98 and 79,958.28 is: 110,342.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,671 : 184,465.98 = 79,958.28 : x
  2. Step 2: Convert to fraction form
    133,671/184,465.98 = 79,958.28/x
  3. Step 3: Cross multiply
    133,671x = 184,465.98 × 79,958.28
  4. Step 4: Simplify right side
    133,671x = 14,749,582,479.31
  5. Step 5: Solve for x
    x = 14,749,582,479.31/133,671
  6. Step 6: Final answer
    x = 110,342.43

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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.