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Finding the Fourth Proportional to 343,674.60, 474,258.49 and 190,719.47

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Solution

The fourth proportional to 343,674.60, 474,258.49 and 190,719.47 is: 263,185.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,674.60 : 474,258.49 = 190,719.47 : x
  2. Step 2: Convert to fraction form
    343,674.60/474,258.49 = 190,719.47/x
  3. Step 3: Cross multiply
    343,674.60x = 474,258.49 × 190,719.47
  4. Step 4: Simplify right side
    343,674.60x = 90,450,327,855.80
  5. Step 5: Solve for x
    x = 90,450,327,855.80/343,674.60
  6. Step 6: Final answer
    x = 263,185.96

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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.