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Finding the Fourth Proportional to 201,080.58, 277,498.02 and 115,053.72

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Solution

The fourth proportional to 201,080.58, 277,498.02 and 115,053.72 is: 158,778.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,080.58 : 277,498.02 = 115,053.72 : x
  2. Step 2: Convert to fraction form
    201,080.58/277,498.02 = 115,053.72/x
  3. Step 3: Cross multiply
    201,080.58x = 277,498.02 × 115,053.72
  4. Step 4: Simplify right side
    201,080.58x = 31,927,179,493.63
  5. Step 5: Solve for x
    x = 31,927,179,493.63/201,080.58
  6. Step 6: Final answer
    x = 158,778.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.