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Finding the Fourth Proportional to 367,830.78, 551,747.40 and 101,585.40

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Solution

The fourth proportional to 367,830.78, 551,747.40 and 101,585.40 is: 152,378.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,830.78 : 551,747.40 = 101,585.40 : x
  2. Step 2: Convert to fraction form
    367,830.78/551,747.40 = 101,585.40/x
  3. Step 3: Cross multiply
    367,830.78x = 551,747.40 × 101,585.40
  4. Step 4: Simplify right side
    367,830.78x = 56,049,480,327.96
  5. Step 5: Solve for x
    x = 56,049,480,327.96/367,830.78
  6. Step 6: Final answer
    x = 152,378.44

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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.