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Finding the Third Proportional to 58,486.50 and 90,726.75

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Solution

The third proportional to 58,486.50 and 90,726.75 is: 140,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,486.50 : 90,726.75 = 90,726.75 : x
  2. Step 2: Convert to fraction form
    58,486.50/90,726.75 = 90,726.75/x
  3. Step 3: Cross multiply
    58,486.50x = 90,726.75 × 90,726.75
  4. Step 4: Simplify right side
    58,486.50x = 8,231,343,165.56
  5. Step 5: Solve for x
    x = 8,231,343,165.56/58,486.50
  6. Step 6: Final answer
    x = 140,739.20

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.