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Finding the Third Proportional to 56,785.50 and 121,023

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Solution

The third proportional to 56,785.50 and 121,023 is: 257,927.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,785.50 : 121,023 = 121,023 : x
  2. Step 2: Convert to fraction form
    56,785.50/121,023 = 121,023/x
  3. Step 3: Cross multiply
    56,785.50x = 121,023 × 121,023
  4. Step 4: Simplify right side
    56,785.50x = 14,646,566,529
  5. Step 5: Solve for x
    x = 14,646,566,529/56,785.50
  6. Step 6: Final answer
    x = 257,927.93

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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.