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Finding the Fourth Proportional to 133,330.96, 184,008.08 and 75,987.82

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Solution

The fourth proportional to 133,330.96, 184,008.08 and 75,987.82 is: 104,869.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,330.96 : 184,008.08 = 75,987.82 : x
  2. Step 2: Convert to fraction form
    133,330.96/184,008.08 = 75,987.82/x
  3. Step 3: Cross multiply
    133,330.96x = 184,008.08 × 75,987.82
  4. Step 4: Simplify right side
    133,330.96x = 13,982,372,861.59
  5. Step 5: Solve for x
    x = 13,982,372,861.59/133,330.96
  6. Step 6: Final answer
    x = 104,869.66

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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.