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Finding the Third Proportional to 85,429.69 and 127,666.13

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Solution

The third proportional to 85,429.69 and 127,666.13 is: 190,784.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,429.69 : 127,666.13 = 127,666.13 : x
  2. Step 2: Convert to fraction form
    85,429.69/127,666.13 = 127,666.13/x
  3. Step 3: Cross multiply
    85,429.69x = 127,666.13 × 127,666.13
  4. Step 4: Simplify right side
    85,429.69x = 16,298,639,472.52
  5. Step 5: Solve for x
    x = 16,298,639,472.52/85,429.69
  6. Step 6: Final answer
    x = 190,784.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.