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Finding the Fourth Proportional to 499,624.01, 749,429.05 and 120,541.56

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Solution

The fourth proportional to 499,624.01, 749,429.05 and 120,541.56 is: 180,810.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,624.01 : 749,429.05 = 120,541.56 : x
  2. Step 2: Convert to fraction form
    499,624.01/749,429.05 = 120,541.56/x
  3. Step 3: Cross multiply
    499,624.01x = 749,429.05 × 120,541.56
  4. Step 4: Simplify right side
    499,624.01x = 90,337,344,794.99
  5. Step 5: Solve for x
    x = 90,337,344,794.99/499,624.01
  6. Step 6: Final answer
    x = 180,810.66

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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.