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Finding the Fourth Proportional to 119,795, 165,317.82 and 66,081.92

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Solution

The fourth proportional to 119,795, 165,317.82 and 66,081.92 is: 91,193.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,795 : 165,317.82 = 66,081.92 : x
  2. Step 2: Convert to fraction form
    119,795/165,317.82 = 66,081.92/x
  3. Step 3: Cross multiply
    119,795x = 165,317.82 × 66,081.92
  4. Step 4: Simplify right side
    119,795x = 10,924,518,955.81
  5. Step 5: Solve for x
    x = 10,924,518,955.81/119,795
  6. Step 6: Final answer
    x = 91,193.45

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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.