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Finding the Fourth Proportional to 245,138.82, 367,709.20 and 162,014.34

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Solution

The fourth proportional to 245,138.82, 367,709.20 and 162,014.34 is: 243,022.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,138.82 : 367,709.20 = 162,014.34 : x
  2. Step 2: Convert to fraction form
    245,138.82/367,709.20 = 162,014.34/x
  3. Step 3: Cross multiply
    245,138.82x = 367,709.20 × 162,014.34
  4. Step 4: Simplify right side
    245,138.82x = 59,574,163,349.93
  5. Step 5: Solve for x
    x = 59,574,163,349.93/245,138.82
  6. Step 6: Final answer
    x = 243,022.15

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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.