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Finding the Fourth Proportional to 425,157.30, 637,772.66 and 109,611.54

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Solution

The fourth proportional to 425,157.30, 637,772.66 and 109,611.54 is: 164,426.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,157.30 : 637,772.66 = 109,611.54 : x
  2. Step 2: Convert to fraction form
    425,157.30/637,772.66 = 109,611.54/x
  3. Step 3: Cross multiply
    425,157.30x = 637,772.66 × 109,611.54
  4. Step 4: Simplify right side
    425,157.30x = 69,907,243,432.50
  5. Step 5: Solve for x
    x = 69,907,243,432.50/425,157.30
  6. Step 6: Final answer
    x = 164,426.77

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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.