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Finding the Fourth Proportional to 133,047.30, 199,279.35 and 118,272.90

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Solution

The fourth proportional to 133,047.30, 199,279.35 and 118,272.90 is: 177,150.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,047.30 : 199,279.35 = 118,272.90 : x
  2. Step 2: Convert to fraction form
    133,047.30/199,279.35 = 118,272.90/x
  3. Step 3: Cross multiply
    133,047.30x = 199,279.35 × 118,272.90
  4. Step 4: Simplify right side
    133,047.30x = 23,569,346,634.62
  5. Step 5: Solve for x
    x = 23,569,346,634.62/133,047.30
  6. Step 6: Final answer
    x = 177,150.13

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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.