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Finding the Fourth Proportional to 451,915.67, 677,870.57 and 114,953.45

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Solution

The fourth proportional to 451,915.67, 677,870.57 and 114,953.45 is: 172,429.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,915.67 : 677,870.57 = 114,953.45 : x
  2. Step 2: Convert to fraction form
    451,915.67/677,870.57 = 114,953.45/x
  3. Step 3: Cross multiply
    451,915.67x = 677,870.57 × 114,953.45
  4. Step 4: Simplify right side
    451,915.67x = 77,923,557,573.00
  5. Step 5: Solve for x
    x = 77,923,557,573.00/451,915.67
  6. Step 6: Final answer
    x = 172,429.42

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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.