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Finding the Fourth Proportional to 202,034.32, 303,138.88 and 108,430.72

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Solution

The fourth proportional to 202,034.32, 303,138.88 and 108,430.72 is: 162,692.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,034.32 : 303,138.88 = 108,430.72 : x
  2. Step 2: Convert to fraction form
    202,034.32/303,138.88 = 108,430.72/x
  3. Step 3: Cross multiply
    202,034.32x = 303,138.88 × 108,430.72
  4. Step 4: Simplify right side
    202,034.32x = 32,869,567,018.39
  5. Step 5: Solve for x
    x = 32,869,567,018.39/202,034.32
  6. Step 6: Final answer
    x = 162,692.99

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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.