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Finding the Fourth Proportional to 108,818.43, 163,208.80 and 29,913.90

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Solution

The fourth proportional to 108,818.43, 163,208.80 and 29,913.90 is: 44,865.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,818.43 : 163,208.80 = 29,913.90 : x
  2. Step 2: Convert to fraction form
    108,818.43/163,208.80 = 29,913.90/x
  3. Step 3: Cross multiply
    108,818.43x = 163,208.80 × 29,913.90
  4. Step 4: Simplify right side
    108,818.43x = 4,882,211,722.32
  5. Step 5: Solve for x
    x = 4,882,211,722.32/108,818.43
  6. Step 6: Final answer
    x = 44,865.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.