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Finding the Fourth Proportional to 499,420.08, 749,151.99 and 144,469.98

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Solution

The fourth proportional to 499,420.08, 749,151.99 and 144,469.98 is: 216,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,420.08 : 749,151.99 = 144,469.98 : x
  2. Step 2: Convert to fraction form
    499,420.08/749,151.99 = 144,469.98/x
  3. Step 3: Cross multiply
    499,420.08x = 749,151.99 × 144,469.98
  4. Step 4: Simplify right side
    499,420.08x = 108,229,973,012.26
  5. Step 5: Solve for x
    x = 108,229,973,012.26/499,420.08
  6. Step 6: Final answer
    x = 216,711.30

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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.