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Finding the Third Proportional to 56,415.75 and 120,141

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Solution

The third proportional to 56,415.75 and 120,141 is: 255,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,415.75 : 120,141 = 120,141 : x
  2. Step 2: Convert to fraction form
    56,415.75/120,141 = 120,141/x
  3. Step 3: Cross multiply
    56,415.75x = 120,141 × 120,141
  4. Step 4: Simplify right side
    56,415.75x = 14,433,859,881
  5. Step 5: Solve for x
    x = 14,433,859,881/56,415.75
  6. Step 6: Final answer
    x = 255,848.05

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.