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Finding the Fourth Proportional to 354,776.11, 532,234.27 and 130,138.64

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Solution

The fourth proportional to 354,776.11, 532,234.27 and 130,138.64 is: 195,233.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,776.11 : 532,234.27 = 130,138.64 : x
  2. Step 2: Convert to fraction form
    354,776.11/532,234.27 = 130,138.64/x
  3. Step 3: Cross multiply
    354,776.11x = 532,234.27 × 130,138.64
  4. Step 4: Simplify right side
    354,776.11x = 69,264,241,072.67
  5. Step 5: Solve for x
    x = 69,264,241,072.67/354,776.11
  6. Step 6: Final answer
    x = 195,233.67

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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.