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Finding the Third Proportional to 105,210.28 and 163,242.84

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Solution

The third proportional to 105,210.28 and 163,242.84 is: 253,285.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,210.28 : 163,242.84 = 163,242.84 : x
  2. Step 2: Convert to fraction form
    105,210.28/163,242.84 = 163,242.84/x
  3. Step 3: Cross multiply
    105,210.28x = 163,242.84 × 163,242.84
  4. Step 4: Simplify right side
    105,210.28x = 26,648,226,035.59
  5. Step 5: Solve for x
    x = 26,648,226,035.59/105,210.28
  6. Step 6: Final answer
    x = 253,285.38

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.