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Finding the Fourth Proportional to 299,179.08, 448,424.10 and 121,491

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Solution

The fourth proportional to 299,179.08, 448,424.10 and 121,491 is: 182,096.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,179.08 : 448,424.10 = 121,491 : x
  2. Step 2: Convert to fraction form
    299,179.08/448,424.10 = 121,491/x
  3. Step 3: Cross multiply
    299,179.08x = 448,424.10 × 121,491
  4. Step 4: Simplify right side
    299,179.08x = 54,479,492,333.10
  5. Step 5: Solve for x
    x = 54,479,492,333.10/299,179.08
  6. Step 6: Final answer
    x = 182,096.60

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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.