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Finding the Fourth Proportional to 133,370.82, 184,051.98 and 72,941.72

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Solution

The fourth proportional to 133,370.82, 184,051.98 and 72,941.72 is: 100,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,370.82 : 184,051.98 = 72,941.72 : x
  2. Step 2: Convert to fraction form
    133,370.82/184,051.98 = 72,941.72/x
  3. Step 3: Cross multiply
    133,370.82x = 184,051.98 × 72,941.72
  4. Step 4: Simplify right side
    133,370.82x = 13,425,067,070.35
  5. Step 5: Solve for x
    x = 13,425,067,070.35/133,370.82
  6. Step 6: Final answer
    x = 100,659.70

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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.