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Finding the Fourth Proportional to 353,620.16, 530,447.68 and 100,937.76

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Solution

The fourth proportional to 353,620.16, 530,447.68 and 100,937.76 is: 151,411.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,620.16 : 530,447.68 = 100,937.76 : x
  2. Step 2: Convert to fraction form
    353,620.16/530,447.68 = 100,937.76/x
  3. Step 3: Cross multiply
    353,620.16x = 530,447.68 × 100,937.76
  4. Step 4: Simplify right side
    353,620.16x = 53,542,200,616.40
  5. Step 5: Solve for x
    x = 53,542,200,616.40/353,620.16
  6. Step 6: Final answer
    x = 151,411.62

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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.