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Finding the Fourth Proportional to 343,956.96, 474,654 and 190,987.20

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Solution

The fourth proportional to 343,956.96, 474,654 and 190,987.20 is: 263,558.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,956.96 : 474,654 = 190,987.20 : x
  2. Step 2: Convert to fraction form
    343,956.96/474,654 = 190,987.20/x
  3. Step 3: Cross multiply
    343,956.96x = 474,654 × 190,987.20
  4. Step 4: Simplify right side
    343,956.96x = 90,652,838,428.80
  5. Step 5: Solve for x
    x = 90,652,838,428.80/343,956.96
  6. Step 6: Final answer
    x = 263,558.67

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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.