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Finding the Fourth Proportional to 347,636.64, 521,511.36 and 107,694.48

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Solution

The fourth proportional to 347,636.64, 521,511.36 and 107,694.48 is: 161,559.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,636.64 : 521,511.36 = 107,694.48 : x
  2. Step 2: Convert to fraction form
    347,636.64/521,511.36 = 107,694.48/x
  3. Step 3: Cross multiply
    347,636.64x = 521,511.36 × 107,694.48
  4. Step 4: Simplify right side
    347,636.64x = 56,163,894,729.29
  5. Step 5: Solve for x
    x = 56,163,894,729.29/347,636.64
  6. Step 6: Final answer
    x = 161,559.19

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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.