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Finding the Fourth Proportional to 255,676.61, 352,836.01 and 140,959.32

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Solution

The fourth proportional to 255,676.61, 352,836.01 and 140,959.32 is: 194,525.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,676.61 : 352,836.01 = 140,959.32 : x
  2. Step 2: Convert to fraction form
    255,676.61/352,836.01 = 140,959.32/x
  3. Step 3: Cross multiply
    255,676.61x = 352,836.01 × 140,959.32
  4. Step 4: Simplify right side
    255,676.61x = 49,735,523,440.83
  5. Step 5: Solve for x
    x = 49,735,523,440.83/255,676.61
  6. Step 6: Final answer
    x = 194,525.12

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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.