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Finding the Fourth Proportional to 119,804.92, 165,323.70 and 66,090.04

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Solution

The fourth proportional to 119,804.92, 165,323.70 and 66,090.04 is: 91,200.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,804.92 : 165,323.70 = 66,090.04 : x
  2. Step 2: Convert to fraction form
    119,804.92/165,323.70 = 66,090.04/x
  3. Step 3: Cross multiply
    119,804.92x = 165,323.70 × 66,090.04
  4. Step 4: Simplify right side
    119,804.92x = 10,926,249,945.95
  5. Step 5: Solve for x
    x = 10,926,249,945.95/119,804.92
  6. Step 6: Final answer
    x = 91,200.34

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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.