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Finding the Third Proportional to 187,869.38 and 291,235.50

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Solution

The third proportional to 187,869.38 and 291,235.50 is: 451,473.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,869.38 : 291,235.50 = 291,235.50 : x
  2. Step 2: Convert to fraction form
    187,869.38/291,235.50 = 291,235.50/x
  3. Step 3: Cross multiply
    187,869.38x = 291,235.50 × 291,235.50
  4. Step 4: Simplify right side
    187,869.38x = 84,818,116,460.25
  5. Step 5: Solve for x
    x = 84,818,116,460.25/187,869.38
  6. Step 6: Final answer
    x = 451,473.88

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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.