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Finding the Fourth Proportional to 367,428.62, 551,142.96 and 114,730.76

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Solution

The fourth proportional to 367,428.62, 551,142.96 and 114,730.76 is: 172,096.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,428.62 : 551,142.96 = 114,730.76 : x
  2. Step 2: Convert to fraction form
    367,428.62/551,142.96 = 114,730.76/x
  3. Step 3: Cross multiply
    367,428.62x = 551,142.96 × 114,730.76
  4. Step 4: Simplify right side
    367,428.62x = 63,233,047,913.73
  5. Step 5: Solve for x
    x = 63,233,047,913.73/367,428.62
  6. Step 6: Final answer
    x = 172,096.14

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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.