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Finding the Fourth Proportional to 384,076.20, 576,114.30 and 103,593.40

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Solution

The fourth proportional to 384,076.20, 576,114.30 and 103,593.40 is: 155,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,076.20 : 576,114.30 = 103,593.40 : x
  2. Step 2: Convert to fraction form
    384,076.20/576,114.30 = 103,593.40/x
  3. Step 3: Cross multiply
    384,076.20x = 576,114.30 × 103,593.40
  4. Step 4: Simplify right side
    384,076.20x = 59,681,639,125.62
  5. Step 5: Solve for x
    x = 59,681,639,125.62/384,076.20
  6. Step 6: Final answer
    x = 155,390.10

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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.