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Finding the Fourth Proportional to 299,730.42, 449,585.21 and 75,092.76

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Solution

The fourth proportional to 299,730.42, 449,585.21 and 75,092.76 is: 112,636.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,730.42 : 449,585.21 = 75,092.76 : x
  2. Step 2: Convert to fraction form
    299,730.42/449,585.21 = 75,092.76/x
  3. Step 3: Cross multiply
    299,730.42x = 449,585.21 × 75,092.76
  4. Step 4: Simplify right side
    299,730.42x = 33,760,594,461.81
  5. Step 5: Solve for x
    x = 33,760,594,461.81/299,730.42
  6. Step 6: Final answer
    x = 112,636.53

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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.