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Finding the Fourth Proportional to 104,579.70, 157,197.60 and 102,611.40

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Solution

The fourth proportional to 104,579.70, 157,197.60 and 102,611.40 is: 154,238.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,579.70 : 157,197.60 = 102,611.40 : x
  2. Step 2: Convert to fraction form
    104,579.70/157,197.60 = 102,611.40/x
  3. Step 3: Cross multiply
    104,579.70x = 157,197.60 × 102,611.40
  4. Step 4: Simplify right side
    104,579.70x = 16,130,265,812.64
  5. Step 5: Solve for x
    x = 16,130,265,812.64/104,579.70
  6. Step 6: Final answer
    x = 154,238.98

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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.