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Finding the Fourth Proportional to 133,330.21, 184,007.04 and 75,987.07

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Solution

The fourth proportional to 133,330.21, 184,007.04 and 75,987.07 is: 104,868.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,330.21 : 184,007.04 = 75,987.07 : x
  2. Step 2: Convert to fraction form
    133,330.21/184,007.04 = 75,987.07/x
  3. Step 3: Cross multiply
    133,330.21x = 184,007.04 × 75,987.07
  4. Step 4: Simplify right side
    133,330.21x = 13,982,155,828.97
  5. Step 5: Solve for x
    x = 13,982,155,828.97/133,330.21
  6. Step 6: Final answer
    x = 104,868.63

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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.