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Finding the Third Proportional to 58,777.88 and 128,045.25

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Solution

The third proportional to 58,777.88 and 128,045.25 is: 278,941.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,777.88 : 128,045.25 = 128,045.25 : x
  2. Step 2: Convert to fraction form
    58,777.88/128,045.25 = 128,045.25/x
  3. Step 3: Cross multiply
    58,777.88x = 128,045.25 × 128,045.25
  4. Step 4: Simplify right side
    58,777.88x = 16,395,586,047.56
  5. Step 5: Solve for x
    x = 16,395,586,047.56/58,777.88
  6. Step 6: Final answer
    x = 278,941.46

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.