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Finding the Fourth Proportional to 353,790.36, 530,689.59 and 151,358.94

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Solution

The fourth proportional to 353,790.36, 530,689.59 and 151,358.94 is: 227,040.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,790.36 : 530,689.59 = 151,358.94 : x
  2. Step 2: Convert to fraction form
    353,790.36/530,689.59 = 151,358.94/x
  3. Step 3: Cross multiply
    353,790.36x = 530,689.59 × 151,358.94
  4. Step 4: Simplify right side
    353,790.36x = 80,324,613,811.43
  5. Step 5: Solve for x
    x = 80,324,613,811.43/353,790.36
  6. Step 6: Final answer
    x = 227,040.14

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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.