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Finding the Fourth Proportional to 108,068.88, 162,102.84 and 29,191.20

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Solution

The fourth proportional to 108,068.88, 162,102.84 and 29,191.20 is: 43,786.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,068.88 : 162,102.84 = 29,191.20 : x
  2. Step 2: Convert to fraction form
    108,068.88/162,102.84 = 29,191.20/x
  3. Step 3: Cross multiply
    108,068.88x = 162,102.84 × 29,191.20
  4. Step 4: Simplify right side
    108,068.88x = 4,731,976,423.01
  5. Step 5: Solve for x
    x = 4,731,976,423.01/108,068.88
  6. Step 6: Final answer
    x = 43,786.67

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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.