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Finding the Third Proportional to 172,362.94 and 310,690.69

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Solution

The third proportional to 172,362.94 and 310,690.69 is: 560,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,362.94 : 310,690.69 = 310,690.69 : x
  2. Step 2: Convert to fraction form
    172,362.94/310,690.69 = 310,690.69/x
  3. Step 3: Cross multiply
    172,362.94x = 310,690.69 × 310,690.69
  4. Step 4: Simplify right side
    172,362.94x = 96,528,703,299.22
  5. Step 5: Solve for x
    x = 96,528,703,299.22/172,362.94
  6. Step 6: Final answer
    x = 560,031.67

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.