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Finding the Fourth Proportional to 133,079.90, 199,619.85 and 130,892.90

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Solution

The fourth proportional to 133,079.90, 199,619.85 and 130,892.90 is: 196,339.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,079.90 : 199,619.85 = 130,892.90 : x
  2. Step 2: Convert to fraction form
    133,079.90/199,619.85 = 130,892.90/x
  3. Step 3: Cross multiply
    133,079.90x = 199,619.85 × 130,892.90
  4. Step 4: Simplify right side
    133,079.90x = 26,128,821,064.07
  5. Step 5: Solve for x
    x = 26,128,821,064.07/133,079.90
  6. Step 6: Final answer
    x = 196,339.35

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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.