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Finding the Fourth Proportional to 353,351.81, 530,202.86 and 140,115.16

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Solution

The fourth proportional to 353,351.81, 530,202.86 and 140,115.16 is: 210,242.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,351.81 : 530,202.86 = 140,115.16 : x
  2. Step 2: Convert to fraction form
    353,351.81/530,202.86 = 140,115.16/x
  3. Step 3: Cross multiply
    353,351.81x = 530,202.86 × 140,115.16
  4. Step 4: Simplify right side
    353,351.81x = 74,289,457,586.14
  5. Step 5: Solve for x
    x = 74,289,457,586.14/353,351.81
  6. Step 6: Final answer
    x = 210,242.19

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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.