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Finding the Fourth Proportional to 347,086.44, 520,633.98 and 110,428.20

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Solution

The fourth proportional to 347,086.44, 520,633.98 and 110,428.20 is: 165,643.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,086.44 : 520,633.98 = 110,428.20 : x
  2. Step 2: Convert to fraction form
    347,086.44/520,633.98 = 110,428.20/x
  3. Step 3: Cross multiply
    347,086.44x = 520,633.98 × 110,428.20
  4. Step 4: Simplify right side
    347,086.44x = 57,492,673,270.24
  5. Step 5: Solve for x
    x = 57,492,673,270.24/347,086.44
  6. Step 6: Final answer
    x = 165,643.67

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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.