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Finding the Fourth Proportional to 162,956.70, 244,143.45 and 139,628.70

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Solution

The fourth proportional to 162,956.70, 244,143.45 and 139,628.70 is: 209,193.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,956.70 : 244,143.45 = 139,628.70 : x
  2. Step 2: Convert to fraction form
    162,956.70/244,143.45 = 139,628.70/x
  3. Step 3: Cross multiply
    162,956.70x = 244,143.45 × 139,628.70
  4. Step 4: Simplify right side
    162,956.70x = 34,089,432,537.02
  5. Step 5: Solve for x
    x = 34,089,432,537.02/162,956.70
  6. Step 6: Final answer
    x = 209,193.19

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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.