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Finding the Fourth Proportional to 168,675.74, 253,055.14 and 118,853.12

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Solution

The fourth proportional to 168,675.74, 253,055.14 and 118,853.12 is: 178,308.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,675.74 : 253,055.14 = 118,853.12 : x
  2. Step 2: Convert to fraction form
    168,675.74/253,055.14 = 118,853.12/x
  3. Step 3: Cross multiply
    168,675.74x = 253,055.14 × 118,853.12
  4. Step 4: Simplify right side
    168,675.74x = 30,076,392,921.04
  5. Step 5: Solve for x
    x = 30,076,392,921.04/168,675.74
  6. Step 6: Final answer
    x = 178,308.94

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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.