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Finding the Fourth Proportional to 368,525.72, 551,902.72 and 210,274.40

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Solution

The fourth proportional to 368,525.72, 551,902.72 and 210,274.40 is: 314,906.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,525.72 : 551,902.72 = 210,274.40 : x
  2. Step 2: Convert to fraction form
    368,525.72/551,902.72 = 210,274.40/x
  3. Step 3: Cross multiply
    368,525.72x = 551,902.72 × 210,274.40
  4. Step 4: Simplify right side
    368,525.72x = 116,051,013,306.37
  5. Step 5: Solve for x
    x = 116,051,013,306.37/368,525.72
  6. Step 6: Final answer
    x = 314,906.14

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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.