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Finding the Fourth Proportional to 348,710, 523,142.76 and 127,094

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Solution

The fourth proportional to 348,710, 523,142.76 and 127,094 is: 190,669.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,710 : 523,142.76 = 127,094 : x
  2. Step 2: Convert to fraction form
    348,710/523,142.76 = 127,094/x
  3. Step 3: Cross multiply
    348,710x = 523,142.76 × 127,094
  4. Step 4: Simplify right side
    348,710x = 66,488,305,939.44
  5. Step 5: Solve for x
    x = 66,488,305,939.44/348,710
  6. Step 6: Final answer
    x = 190,669.34

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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.