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Finding the Fourth Proportional to 612,222.80, 918,093.90 and 232,942.10

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Solution

The fourth proportional to 612,222.80, 918,093.90 and 232,942.10 is: 349,321.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,222.80 : 918,093.90 = 232,942.10 : x
  2. Step 2: Convert to fraction form
    612,222.80/918,093.90 = 232,942.10/x
  3. Step 3: Cross multiply
    612,222.80x = 918,093.90 × 232,942.10
  4. Step 4: Simplify right side
    612,222.80x = 213,862,721,063.19
  5. Step 5: Solve for x
    x = 213,862,721,063.19/612,222.80
  6. Step 6: Final answer
    x = 349,321.72

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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.