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Finding the Fourth Proportional to 367,706.48, 551,561.16 and 243,019.76

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Solution

The fourth proportional to 367,706.48, 551,561.16 and 243,019.76 is: 364,530.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,706.48 : 551,561.16 = 243,019.76 : x
  2. Step 2: Convert to fraction form
    367,706.48/551,561.16 = 243,019.76/x
  3. Step 3: Cross multiply
    367,706.48x = 551,561.16 × 243,019.76
  4. Step 4: Simplify right side
    367,706.48x = 134,040,260,728.52
  5. Step 5: Solve for x
    x = 134,040,260,728.52/367,706.48
  6. Step 6: Final answer
    x = 364,530.59

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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.