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Finding the Fourth Proportional to 335,782.20, 503,762.40 and 146,161.20

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Solution

The fourth proportional to 335,782.20, 503,762.40 and 146,161.20 is: 219,280.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,782.20 : 503,762.40 = 146,161.20 : x
  2. Step 2: Convert to fraction form
    335,782.20/503,762.40 = 146,161.20/x
  3. Step 3: Cross multiply
    335,782.20x = 503,762.40 × 146,161.20
  4. Step 4: Simplify right side
    335,782.20x = 73,630,516,898.88
  5. Step 5: Solve for x
    x = 73,630,516,898.88/335,782.20
  6. Step 6: Final answer
    x = 219,280.58

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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.