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Finding the Fourth Proportional to 195,068.63, 269,194.70 and 105,644.63

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Solution

The fourth proportional to 195,068.63, 269,194.70 and 105,644.63 is: 145,789.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,068.63 : 269,194.70 = 105,644.63 : x
  2. Step 2: Convert to fraction form
    195,068.63/269,194.70 = 105,644.63/x
  3. Step 3: Cross multiply
    195,068.63x = 269,194.70 × 105,644.63
  4. Step 4: Simplify right side
    195,068.63x = 28,438,973,397.60
  5. Step 5: Solve for x
    x = 28,438,973,397.60/195,068.63
  6. Step 6: Final answer
    x = 145,789.58

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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.