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Finding the Fourth Proportional to 118,812.44, 163,961.12 and 71,077.01

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Solution

The fourth proportional to 118,812.44, 163,961.12 and 71,077.01 is: 98,086.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,812.44 : 163,961.12 = 71,077.01 : x
  2. Step 2: Convert to fraction form
    118,812.44/163,961.12 = 71,077.01/x
  3. Step 3: Cross multiply
    118,812.44x = 163,961.12 × 71,077.01
  4. Step 4: Simplify right side
    118,812.44x = 11,653,864,990.66
  5. Step 5: Solve for x
    x = 11,653,864,990.66/118,812.44
  6. Step 6: Final answer
    x = 98,086.24

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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.