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Finding the Fourth Proportional to 273,577.20, 410,135.40 and 142,249.20

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Solution

The fourth proportional to 273,577.20, 410,135.40 and 142,249.20 is: 213,254.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,577.20 : 410,135.40 = 142,249.20 : x
  2. Step 2: Convert to fraction form
    273,577.20/410,135.40 = 142,249.20/x
  3. Step 3: Cross multiply
    273,577.20x = 410,135.40 × 142,249.20
  4. Step 4: Simplify right side
    273,577.20x = 58,341,432,541.68
  5. Step 5: Solve for x
    x = 58,341,432,541.68/273,577.20
  6. Step 6: Final answer
    x = 213,254.00

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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.