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Finding the Third Proportional to 54,631.13 and 78,715.13

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Solution

The third proportional to 54,631.13 and 78,715.13 is: 113,416.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,631.13 : 78,715.13 = 78,715.13 : x
  2. Step 2: Convert to fraction form
    54,631.13/78,715.13 = 78,715.13/x
  3. Step 3: Cross multiply
    54,631.13x = 78,715.13 × 78,715.13
  4. Step 4: Simplify right side
    54,631.13x = 6,196,070,903.77
  5. Step 5: Solve for x
    x = 6,196,070,903.77/54,631.13
  6. Step 6: Final answer
    x = 113,416.50

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.