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Finding the Fourth Proportional to 289,538.79, 434,366.22 and 100,006.11

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Solution

The fourth proportional to 289,538.79, 434,366.22 and 100,006.11 is: 150,029.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,538.79 : 434,366.22 = 100,006.11 : x
  2. Step 2: Convert to fraction form
    289,538.79/434,366.22 = 100,006.11/x
  3. Step 3: Cross multiply
    289,538.79x = 434,366.22 × 100,006.11
  4. Step 4: Simplify right side
    289,538.79x = 43,439,275,977.60
  5. Step 5: Solve for x
    x = 43,439,275,977.60/289,538.79
  6. Step 6: Final answer
    x = 150,029.21

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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.