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Finding the Fourth Proportional to 492,828.66, 739,243.71 and 118,851.66

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Solution

The fourth proportional to 492,828.66, 739,243.71 and 118,851.66 is: 178,277.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,828.66 : 739,243.71 = 118,851.66 : x
  2. Step 2: Convert to fraction form
    492,828.66/739,243.71 = 118,851.66/x
  3. Step 3: Cross multiply
    492,828.66x = 739,243.71 × 118,851.66
  4. Step 4: Simplify right side
    492,828.66x = 87,860,342,078.06
  5. Step 5: Solve for x
    x = 87,860,342,078.06/492,828.66
  6. Step 6: Final answer
    x = 178,277.66

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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.