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Finding the Fourth Proportional to 118,051.22, 162,892.05 and 66,358.12

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Solution

The fourth proportional to 118,051.22, 162,892.05 and 66,358.12 is: 91,563.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,051.22 : 162,892.05 = 66,358.12 : x
  2. Step 2: Convert to fraction form
    118,051.22/162,892.05 = 66,358.12/x
  3. Step 3: Cross multiply
    118,051.22x = 162,892.05 × 66,358.12
  4. Step 4: Simplify right side
    118,051.22x = 10,809,210,200.95
  5. Step 5: Solve for x
    x = 10,809,210,200.95/118,051.22
  6. Step 6: Final answer
    x = 91,563.73

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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.