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Finding the Fourth Proportional to 210,453.48, 290,414.66 and 114,958.84

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Solution

The fourth proportional to 210,453.48, 290,414.66 and 114,958.84 is: 158,637.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,453.48 : 290,414.66 = 114,958.84 : x
  2. Step 2: Convert to fraction form
    210,453.48/290,414.66 = 114,958.84/x
  3. Step 3: Cross multiply
    210,453.48x = 290,414.66 × 114,958.84
  4. Step 4: Simplify right side
    210,453.48x = 33,385,732,432.59
  5. Step 5: Solve for x
    x = 33,385,732,432.59/210,453.48
  6. Step 6: Final answer
    x = 158,637.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.