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Finding the Fourth Proportional to 104,599.59, 156,811.22 and 45,390.67

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Solution

The fourth proportional to 104,599.59, 156,811.22 and 45,390.67 is: 68,047.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,599.59 : 156,811.22 = 45,390.67 : x
  2. Step 2: Convert to fraction form
    104,599.59/156,811.22 = 45,390.67/x
  3. Step 3: Cross multiply
    104,599.59x = 156,811.22 × 45,390.67
  4. Step 4: Simplify right side
    104,599.59x = 7,117,766,339.32
  5. Step 5: Solve for x
    x = 7,117,766,339.32/104,599.59
  6. Step 6: Final answer
    x = 68,047.75

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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.