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Finding the Fourth Proportional to 425,156.80, 637,771.91 and 109,611.04

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Solution

The fourth proportional to 425,156.80, 637,771.91 and 109,611.04 is: 164,426.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,156.80 : 637,771.91 = 109,611.04 : x
  2. Step 2: Convert to fraction form
    425,156.80/637,771.91 = 109,611.04/x
  3. Step 3: Cross multiply
    425,156.80x = 637,771.91 × 109,611.04
  4. Step 4: Simplify right side
    425,156.80x = 69,906,842,337.89
  5. Step 5: Solve for x
    x = 69,906,842,337.89/425,156.80
  6. Step 6: Final answer
    x = 164,426.02

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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.