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Finding the Fourth Proportional to 173,315, 239,174.70 and 93,827

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Solution

The fourth proportional to 173,315, 239,174.70 and 93,827 is: 129,481.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,315 : 239,174.70 = 93,827 : x
  2. Step 2: Convert to fraction form
    173,315/239,174.70 = 93,827/x
  3. Step 3: Cross multiply
    173,315x = 239,174.70 × 93,827
  4. Step 4: Simplify right side
    173,315x = 22,441,044,576.90
  5. Step 5: Solve for x
    x = 22,441,044,576.90/173,315
  6. Step 6: Final answer
    x = 129,481.26

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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.