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Finding the Fourth Proportional to 347,087.94, 520,636.23 and 110,429.70

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Solution

The fourth proportional to 347,087.94, 520,636.23 and 110,429.70 is: 165,645.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,087.94 : 520,636.23 = 110,429.70 : x
  2. Step 2: Convert to fraction form
    347,087.94/520,636.23 = 110,429.70/x
  3. Step 3: Cross multiply
    347,087.94x = 520,636.23 × 110,429.70
  4. Step 4: Simplify right side
    347,087.94x = 57,493,702,688.03
  5. Step 5: Solve for x
    x = 57,493,702,688.03/347,087.94
  6. Step 6: Final answer
    x = 165,645.92

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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.