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Finding the Fourth Proportional to 135,796.95, 186,735.10 and 117,860.72

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Solution

The fourth proportional to 135,796.95, 186,735.10 and 117,860.72 is: 162,070.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,796.95 : 186,735.10 = 117,860.72 : x
  2. Step 2: Convert to fraction form
    135,796.95/186,735.10 = 117,860.72/x
  3. Step 3: Cross multiply
    135,796.95x = 186,735.10 × 117,860.72
  4. Step 4: Simplify right side
    135,796.95x = 22,008,733,335.27
  5. Step 5: Solve for x
    x = 22,008,733,335.27/135,796.95
  6. Step 6: Final answer
    x = 162,070.90

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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.