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Finding the Fourth Proportional to 353,579.33, 530,373.99 and 100,859.87

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Solution

The fourth proportional to 353,579.33, 530,373.99 and 100,859.87 is: 151,291.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,579.33 : 530,373.99 = 100,859.87 : x
  2. Step 2: Convert to fraction form
    353,579.33/530,373.99 = 100,859.87/x
  3. Step 3: Cross multiply
    353,579.33x = 530,373.99 × 100,859.87
  4. Step 4: Simplify right side
    353,579.33x = 53,493,449,030.91
  5. Step 5: Solve for x
    x = 53,493,449,030.91/353,579.33
  6. Step 6: Final answer
    x = 151,291.22

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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.