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Finding the Fourth Proportional to 272,321.09, 375,776.78 and 157,576.85

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Solution

The fourth proportional to 272,321.09, 375,776.78 and 157,576.85 is: 217,440.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,321.09 : 375,776.78 = 157,576.85 : x
  2. Step 2: Convert to fraction form
    272,321.09/375,776.78 = 157,576.85/x
  3. Step 3: Cross multiply
    272,321.09x = 375,776.78 × 157,576.85
  4. Step 4: Simplify right side
    272,321.09x = 59,213,721,295.54
  5. Step 5: Solve for x
    x = 59,213,721,295.54/272,321.09
  6. Step 6: Final answer
    x = 217,440.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.