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Finding the Third Proportional to 156,958 and 240,153

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Solution

The third proportional to 156,958 and 240,153 is: 367,445.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,958 : 240,153 = 240,153 : x
  2. Step 2: Convert to fraction form
    156,958/240,153 = 240,153/x
  3. Step 3: Cross multiply
    156,958x = 240,153 × 240,153
  4. Step 4: Simplify right side
    156,958x = 57,673,463,409
  5. Step 5: Solve for x
    x = 57,673,463,409/156,958
  6. Step 6: Final answer
    x = 367,445.20

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.