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Finding the Fourth Proportional to 104,038.30, 156,057.45 and 93,540.70

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Solution

The fourth proportional to 104,038.30, 156,057.45 and 93,540.70 is: 140,311.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,038.30 : 156,057.45 = 93,540.70 : x
  2. Step 2: Convert to fraction form
    104,038.30/156,057.45 = 93,540.70/x
  3. Step 3: Cross multiply
    104,038.30x = 156,057.45 × 93,540.70
  4. Step 4: Simplify right side
    104,038.30x = 14,597,723,113.22
  5. Step 5: Solve for x
    x = 14,597,723,113.22/104,038.30
  6. Step 6: Final answer
    x = 140,311.05

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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.