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Finding the Fourth Proportional to 437,219.20, 655,820.16 and 141,731.20

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Solution

The fourth proportional to 437,219.20, 655,820.16 and 141,731.20 is: 212,594.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,219.20 : 655,820.16 = 141,731.20 : x
  2. Step 2: Convert to fraction form
    437,219.20/655,820.16 = 141,731.20/x
  3. Step 3: Cross multiply
    437,219.20x = 655,820.16 × 141,731.20
  4. Step 4: Simplify right side
    437,219.20x = 92,950,178,260.99
  5. Step 5: Solve for x
    x = 92,950,178,260.99/437,219.20
  6. Step 6: Final answer
    x = 212,594.00

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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.