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Finding the Third Proportional to 189,031.50 and 409,095

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Solution

The third proportional to 189,031.50 and 409,095 is: 885,348.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,031.50 : 409,095 = 409,095 : x
  2. Step 2: Convert to fraction form
    189,031.50/409,095 = 409,095/x
  3. Step 3: Cross multiply
    189,031.50x = 409,095 × 409,095
  4. Step 4: Simplify right side
    189,031.50x = 167,358,719,025
  5. Step 5: Solve for x
    x = 167,358,719,025/189,031.50
  6. Step 6: Final answer
    x = 885,348.31

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.