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Finding the Third Proportional to 91,425.66 and 121,311.56

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Solution

The third proportional to 91,425.66 and 121,311.56 is: 160,966.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,425.66 : 121,311.56 = 121,311.56 : x
  2. Step 2: Convert to fraction form
    91,425.66/121,311.56 = 121,311.56/x
  3. Step 3: Cross multiply
    91,425.66x = 121,311.56 × 121,311.56
  4. Step 4: Simplify right side
    91,425.66x = 14,716,495,196.19
  5. Step 5: Solve for x
    x = 14,716,495,196.19/91,425.66
  6. Step 6: Final answer
    x = 160,966.80

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.