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Finding the Fourth Proportional to 118,051.93, 162,893.17 and 66,358.80

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Solution

The fourth proportional to 118,051.93, 162,893.17 and 66,358.80 is: 91,564.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,051.93 : 162,893.17 = 66,358.80 : x
  2. Step 2: Convert to fraction form
    118,051.93/162,893.17 = 66,358.80/x
  3. Step 3: Cross multiply
    118,051.93x = 162,893.17 × 66,358.80
  4. Step 4: Simplify right side
    118,051.93x = 10,809,395,289.40
  5. Step 5: Solve for x
    x = 10,809,395,289.40/118,051.93
  6. Step 6: Final answer
    x = 91,564.75

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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.