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Finding the Fourth Proportional to 612,063.24, 918,021.80 and 162,816.98

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Solution

The fourth proportional to 612,063.24, 918,021.80 and 162,816.98 is: 244,206.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,063.24 : 918,021.80 = 162,816.98 : x
  2. Step 2: Convert to fraction form
    612,063.24/918,021.80 = 162,816.98/x
  3. Step 3: Cross multiply
    612,063.24x = 918,021.80 × 162,816.98
  4. Step 4: Simplify right side
    612,063.24x = 149,469,537,050.16
  5. Step 5: Solve for x
    x = 149,469,537,050.16/612,063.24
  6. Step 6: Final answer
    x = 244,206.04

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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.