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Finding the Fourth Proportional to 133,098.40, 199,647.60 and 130,911.40

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Solution

The fourth proportional to 133,098.40, 199,647.60 and 130,911.40 is: 196,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,098.40 : 199,647.60 = 130,911.40 : x
  2. Step 2: Convert to fraction form
    133,098.40/199,647.60 = 130,911.40/x
  3. Step 3: Cross multiply
    133,098.40x = 199,647.60 × 130,911.40
  4. Step 4: Simplify right side
    133,098.40x = 26,136,146,822.64
  5. Step 5: Solve for x
    x = 26,136,146,822.64/133,098.40
  6. Step 6: Final answer
    x = 196,367.10

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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.