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Finding the Fourth Proportional to 236,687.40, 355,249.80 and 118,443.60

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Solution

The fourth proportional to 236,687.40, 355,249.80 and 118,443.60 is: 177,774.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,687.40 : 355,249.80 = 118,443.60 : x
  2. Step 2: Convert to fraction form
    236,687.40/355,249.80 = 118,443.60/x
  3. Step 3: Cross multiply
    236,687.40x = 355,249.80 × 118,443.60
  4. Step 4: Simplify right side
    236,687.40x = 42,077,065,211.28
  5. Step 5: Solve for x
    x = 42,077,065,211.28/236,687.40
  6. Step 6: Final answer
    x = 177,774.84

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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.