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Finding the Fourth Proportional to 367,768.50, 551,652.78 and 118,450.50

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Solution

The fourth proportional to 367,768.50, 551,652.78 and 118,450.50 is: 177,675.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,768.50 : 551,652.78 = 118,450.50 : x
  2. Step 2: Convert to fraction form
    367,768.50/551,652.78 = 118,450.50/x
  3. Step 3: Cross multiply
    367,768.50x = 551,652.78 × 118,450.50
  4. Step 4: Simplify right side
    367,768.50x = 65,343,547,617.39
  5. Step 5: Solve for x
    x = 65,343,547,617.39/367,768.50
  6. Step 6: Final answer
    x = 177,675.76

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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.