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Finding the Fourth Proportional to 238,755.87, 358,094.86 and 70,236.78

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Solution

The fourth proportional to 238,755.87, 358,094.86 and 70,236.78 is: 105,343.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,755.87 : 358,094.86 = 70,236.78 : x
  2. Step 2: Convert to fraction form
    238,755.87/358,094.86 = 70,236.78/x
  3. Step 3: Cross multiply
    238,755.87x = 358,094.86 × 70,236.78
  4. Step 4: Simplify right side
    238,755.87x = 25,151,429,900.95
  5. Step 5: Solve for x
    x = 25,151,429,900.95/238,755.87
  6. Step 6: Final answer
    x = 105,343.71

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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.