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Finding the Fourth Proportional to 384,134.60, 576,201.90 and 103,651.40

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Solution

The fourth proportional to 384,134.60, 576,201.90 and 103,651.40 is: 155,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,134.60 : 576,201.90 = 103,651.40 : x
  2. Step 2: Convert to fraction form
    384,134.60/576,201.90 = 103,651.40/x
  3. Step 3: Cross multiply
    384,134.60x = 576,201.90 × 103,651.40
  4. Step 4: Simplify right side
    384,134.60x = 59,724,133,617.66
  5. Step 5: Solve for x
    x = 59,724,133,617.66/384,134.60
  6. Step 6: Final answer
    x = 155,477.10

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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.