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Finding the Fourth Proportional to 238,287.40, 356,934.30 and 112,035.40

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Solution

The fourth proportional to 238,287.40, 356,934.30 and 112,035.40 is: 167,819.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,287.40 : 356,934.30 = 112,035.40 : x
  2. Step 2: Convert to fraction form
    238,287.40/356,934.30 = 112,035.40/x
  3. Step 3: Cross multiply
    238,287.40x = 356,934.30 × 112,035.40
  4. Step 4: Simplify right side
    238,287.40x = 39,989,277,074.22
  5. Step 5: Solve for x
    x = 39,989,277,074.22/238,287.40
  6. Step 6: Final answer
    x = 167,819.52

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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.