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Finding the Fourth Proportional to 238,805.46, 358,195.23 and 72,580.50

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Solution

The fourth proportional to 238,805.46, 358,195.23 and 72,580.50 is: 108,866.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,805.46 : 358,195.23 = 72,580.50 : x
  2. Step 2: Convert to fraction form
    238,805.46/358,195.23 = 72,580.50/x
  3. Step 3: Cross multiply
    238,805.46x = 358,195.23 × 72,580.50
  4. Step 4: Simplify right side
    238,805.46x = 25,997,988,891.02
  5. Step 5: Solve for x
    x = 25,997,988,891.02/238,805.46
  6. Step 6: Final answer
    x = 108,866.81

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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.