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Finding the Third Proportional to 56,312 and 122,360

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Solution

The third proportional to 56,312 and 122,360 is: 265,875.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,312 : 122,360 = 122,360 : x
  2. Step 2: Convert to fraction form
    56,312/122,360 = 122,360/x
  3. Step 3: Cross multiply
    56,312x = 122,360 × 122,360
  4. Step 4: Simplify right side
    56,312x = 14,971,969,600
  5. Step 5: Solve for x
    x = 14,971,969,600/56,312
  6. Step 6: Final answer
    x = 265,875.29

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.