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Finding the Fourth Proportional to 379,554.66, 569,145.96 and 126,748.26

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Solution

The fourth proportional to 379,554.66, 569,145.96 and 126,748.26 is: 190,060.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,554.66 : 569,145.96 = 126,748.26 : x
  2. Step 2: Convert to fraction form
    379,554.66/569,145.96 = 126,748.26/x
  3. Step 3: Cross multiply
    379,554.66x = 569,145.96 × 126,748.26
  4. Step 4: Simplify right side
    379,554.66x = 72,138,260,116.03
  5. Step 5: Solve for x
    x = 72,138,260,116.03/379,554.66
  6. Step 6: Final answer
    x = 190,060.27

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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.