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Finding the Fourth Proportional to 348,847.60, 523,309.80 and 127,279.60

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Solution

The fourth proportional to 348,847.60, 523,309.80 and 127,279.60 is: 190,933.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,847.60 : 523,309.80 = 127,279.60 : x
  2. Step 2: Convert to fraction form
    348,847.60/523,309.80 = 127,279.60/x
  3. Step 3: Cross multiply
    348,847.60x = 523,309.80 × 127,279.60
  4. Step 4: Simplify right side
    348,847.60x = 66,606,662,020.08
  5. Step 5: Solve for x
    x = 66,606,662,020.08/348,847.60
  6. Step 6: Final answer
    x = 190,933.41

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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.