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Finding the Fourth Proportional to 230,994.80, 346,751.40 and 178,636.40

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Solution

The fourth proportional to 230,994.80, 346,751.40 and 178,636.40 is: 268,155.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,994.80 : 346,751.40 = 178,636.40 : x
  2. Step 2: Convert to fraction form
    230,994.80/346,751.40 = 178,636.40/x
  3. Step 3: Cross multiply
    230,994.80x = 346,751.40 × 178,636.40
  4. Step 4: Simplify right side
    230,994.80x = 61,942,421,790.96
  5. Step 5: Solve for x
    x = 61,942,421,790.96/230,994.80
  6. Step 6: Final answer
    x = 268,155.05

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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.