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Finding the Third Proportional to 56,129.50 and 119,178

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Solution

The third proportional to 56,129.50 and 119,178 is: 253,046.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,129.50 : 119,178 = 119,178 : x
  2. Step 2: Convert to fraction form
    56,129.50/119,178 = 119,178/x
  3. Step 3: Cross multiply
    56,129.50x = 119,178 × 119,178
  4. Step 4: Simplify right side
    56,129.50x = 14,203,395,684
  5. Step 5: Solve for x
    x = 14,203,395,684/56,129.50
  6. Step 6: Final answer
    x = 253,046.89

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.