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Finding the Fourth Proportional to 368,039.67, 552,059.46 and 118,721.67

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Solution

The fourth proportional to 368,039.67, 552,059.46 and 118,721.67 is: 178,082.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,039.67 : 552,059.46 = 118,721.67 : x
  2. Step 2: Convert to fraction form
    368,039.67/552,059.46 = 118,721.67/x
  3. Step 3: Cross multiply
    368,039.67x = 552,059.46 × 118,721.67
  4. Step 4: Simplify right side
    368,039.67x = 65,541,421,030.50
  5. Step 5: Solve for x
    x = 65,541,421,030.50/368,039.67
  6. Step 6: Final answer
    x = 178,082.49

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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.