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Finding the Fourth Proportional to 343,686.46, 474,274.92 and 190,731.34

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Solution

The fourth proportional to 343,686.46, 474,274.92 and 190,731.34 is: 263,202.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,686.46 : 474,274.92 = 190,731.34 : x
  2. Step 2: Convert to fraction form
    343,686.46/474,274.92 = 190,731.34/x
  3. Step 3: Cross multiply
    343,686.46x = 474,274.92 × 190,731.34
  4. Step 4: Simplify right side
    343,686.46x = 90,459,091,019.99
  5. Step 5: Solve for x
    x = 90,459,091,019.99/343,686.46
  6. Step 6: Final answer
    x = 263,202.37

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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.