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Finding the Fourth Proportional to 118,099, 163,268.22 and 113,141.80

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Solution

The fourth proportional to 118,099, 163,268.22 and 113,141.80 is: 156,415.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,099 : 163,268.22 = 113,141.80 : x
  2. Step 2: Convert to fraction form
    118,099/163,268.22 = 113,141.80/x
  3. Step 3: Cross multiply
    118,099x = 163,268.22 × 113,141.80
  4. Step 4: Simplify right side
    118,099x = 18,472,460,293.60
  5. Step 5: Solve for x
    x = 18,472,460,293.60/118,099
  6. Step 6: Final answer
    x = 156,415.04

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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.