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Finding the Fourth Proportional to 412,368.05, 618,529.59 and 112,827.02

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Solution

The fourth proportional to 412,368.05, 618,529.59 and 112,827.02 is: 169,234.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,368.05 : 618,529.59 = 112,827.02 : x
  2. Step 2: Convert to fraction form
    412,368.05/618,529.59 = 112,827.02/x
  3. Step 3: Cross multiply
    412,368.05x = 618,529.59 × 112,827.02
  4. Step 4: Simplify right side
    412,368.05x = 69,786,847,328.87
  5. Step 5: Solve for x
    x = 69,786,847,328.87/412,368.05
  6. Step 6: Final answer
    x = 169,234.37

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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.