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Finding the Fourth Proportional to 119,798.79, 165,322.79 and 66,083.03

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Solution

The fourth proportional to 119,798.79, 165,322.79 and 66,083.03 is: 91,194.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,798.79 : 165,322.79 = 66,083.03 : x
  2. Step 2: Convert to fraction form
    119,798.79/165,322.79 = 66,083.03/x
  3. Step 3: Cross multiply
    119,798.79x = 165,322.79 × 66,083.03
  4. Step 4: Simplify right side
    119,798.79x = 10,925,030,560.84
  5. Step 5: Solve for x
    x = 10,925,030,560.84/119,798.79
  6. Step 6: Final answer
    x = 91,194.84

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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.