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Finding the Fourth Proportional to 630,027.82, 945,039.84 and 156,713.20

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Solution

The fourth proportional to 630,027.82, 945,039.84 and 156,713.20 is: 235,069.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,027.82 : 945,039.84 = 156,713.20 : x
  2. Step 2: Convert to fraction form
    630,027.82/945,039.84 = 156,713.20/x
  3. Step 3: Cross multiply
    630,027.82x = 945,039.84 × 156,713.20
  4. Step 4: Simplify right side
    630,027.82x = 148,100,217,453.89
  5. Step 5: Solve for x
    x = 148,100,217,453.89/630,027.82
  6. Step 6: Final answer
    x = 235,069.33

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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.