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Finding the Fourth Proportional to 354,029.20, 530,847 and 117,242.74

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Solution

The fourth proportional to 354,029.20, 530,847 and 117,242.74 is: 175,798.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,029.20 : 530,847 = 117,242.74 : x
  2. Step 2: Convert to fraction form
    354,029.20/530,847 = 117,242.74/x
  3. Step 3: Cross multiply
    354,029.20x = 530,847 × 117,242.74
  4. Step 4: Simplify right side
    354,029.20x = 62,237,956,800.78
  5. Step 5: Solve for x
    x = 62,237,956,800.78/354,029.20
  6. Step 6: Final answer
    x = 175,798.94

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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.