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Finding the Fourth Proportional to 299,668.86, 449,569.02 and 112,680.36

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Solution

The fourth proportional to 299,668.86, 449,569.02 and 112,680.36 is: 169,045.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,668.86 : 449,569.02 = 112,680.36 : x
  2. Step 2: Convert to fraction form
    299,668.86/449,569.02 = 112,680.36/x
  3. Step 3: Cross multiply
    299,668.86x = 449,569.02 × 112,680.36
  4. Step 4: Simplify right side
    299,668.86x = 50,657,599,018.45
  5. Step 5: Solve for x
    x = 50,657,599,018.45/299,668.86
  6. Step 6: Final answer
    x = 169,045.26

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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.