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Finding the Fourth Proportional to 119,904.93, 165,467.87 and 66,189.93

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Solution

The fourth proportional to 119,904.93, 165,467.87 and 66,189.93 is: 91,341.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,904.93 : 165,467.87 = 66,189.93 : x
  2. Step 2: Convert to fraction form
    119,904.93/165,467.87 = 66,189.93/x
  3. Step 3: Cross multiply
    119,904.93x = 165,467.87 × 66,189.93
  4. Step 4: Simplify right side
    119,904.93x = 10,952,306,401.60
  5. Step 5: Solve for x
    x = 10,952,306,401.60/119,904.93
  6. Step 6: Final answer
    x = 91,341.59

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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.