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Finding the Fourth Proportional to 116,467.40, 174,441.90 and 100,915.40

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Solution

The fourth proportional to 116,467.40, 174,441.90 and 100,915.40 is: 151,148.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,467.40 : 174,441.90 = 100,915.40 : x
  2. Step 2: Convert to fraction form
    116,467.40/174,441.90 = 100,915.40/x
  3. Step 3: Cross multiply
    116,467.40x = 174,441.90 × 100,915.40
  4. Step 4: Simplify right side
    116,467.40x = 17,603,874,115.26
  5. Step 5: Solve for x
    x = 17,603,874,115.26/116,467.40
  6. Step 6: Final answer
    x = 151,148.51

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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.