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Finding the Fourth Proportional to 108,891.54, 163,976.90 and 95,017.05

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Solution

The fourth proportional to 108,891.54, 163,976.90 and 95,017.05 is: 143,083.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,891.54 : 163,976.90 = 95,017.05 : x
  2. Step 2: Convert to fraction form
    108,891.54/163,976.90 = 95,017.05/x
  3. Step 3: Cross multiply
    108,891.54x = 163,976.90 × 95,017.05
  4. Step 4: Simplify right side
    108,891.54x = 15,580,600,831.06
  5. Step 5: Solve for x
    x = 15,580,600,831.06/108,891.54
  6. Step 6: Final answer
    x = 143,083.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.