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Finding the Fourth Proportional to 238,218.30, 356,999.40 and 158,028.30

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Solution

The fourth proportional to 238,218.30, 356,999.40 and 158,028.30 is: 236,824.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,218.30 : 356,999.40 = 158,028.30 : x
  2. Step 2: Convert to fraction form
    238,218.30/356,999.40 = 158,028.30/x
  3. Step 3: Cross multiply
    238,218.30x = 356,999.40 × 158,028.30
  4. Step 4: Simplify right side
    238,218.30x = 56,416,008,283.02
  5. Step 5: Solve for x
    x = 56,416,008,283.02/238,218.30
  6. Step 6: Final answer
    x = 236,824.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.