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Finding the Fourth Proportional to 429,400.58, 644,100.88 and 113,882.10

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Solution

The fourth proportional to 429,400.58, 644,100.88 and 113,882.10 is: 170,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,400.58 : 644,100.88 = 113,882.10 : x
  2. Step 2: Convert to fraction form
    429,400.58/644,100.88 = 113,882.10/x
  3. Step 3: Cross multiply
    429,400.58x = 644,100.88 × 113,882.10
  4. Step 4: Simplify right side
    429,400.58x = 73,351,560,826.25
  5. Step 5: Solve for x
    x = 73,351,560,826.25/429,400.58
  6. Step 6: Final answer
    x = 170,823.15

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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.