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Finding the Fourth Proportional to 296,145.60, 443,345.76 and 190,651.20

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Solution

The fourth proportional to 296,145.60, 443,345.76 and 190,651.20 is: 285,415.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,145.60 : 443,345.76 = 190,651.20 : x
  2. Step 2: Convert to fraction form
    296,145.60/443,345.76 = 190,651.20/x
  3. Step 3: Cross multiply
    296,145.60x = 443,345.76 × 190,651.20
  4. Step 4: Simplify right side
    296,145.60x = 84,524,401,158.91
  5. Step 5: Solve for x
    x = 84,524,401,158.91/296,145.60
  6. Step 6: Final answer
    x = 285,415.02

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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.