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Finding the Fourth Proportional to 238,707, 358,074.90 and 72,496.44

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Solution

The fourth proportional to 238,707, 358,074.90 and 72,496.44 is: 108,749.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,707 : 358,074.90 = 72,496.44 : x
  2. Step 2: Convert to fraction form
    238,707/358,074.90 = 72,496.44/x
  3. Step 3: Cross multiply
    238,707x = 358,074.90 × 72,496.44
  4. Step 4: Simplify right side
    238,707x = 25,959,155,503.36
  5. Step 5: Solve for x
    x = 25,959,155,503.36/238,707
  6. Step 6: Final answer
    x = 108,749.03

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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.