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Finding the Fourth Proportional to 353,636.33, 530,449.33 and 87,396.87

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Solution

The fourth proportional to 353,636.33, 530,449.33 and 87,396.87 is: 131,094.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,636.33 : 530,449.33 = 87,396.87 : x
  2. Step 2: Convert to fraction form
    353,636.33/530,449.33 = 87,396.87/x
  3. Step 3: Cross multiply
    353,636.33x = 530,449.33 × 87,396.87
  4. Step 4: Simplify right side
    353,636.33x = 46,359,613,315.96
  5. Step 5: Solve for x
    x = 46,359,613,315.96/353,636.33
  6. Step 6: Final answer
    x = 131,094.03

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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.