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Finding the Fourth Proportional to 117,957.90, 162,788.70 and 88,834.12

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Solution

The fourth proportional to 117,957.90, 162,788.70 and 88,834.12 is: 122,596.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,957.90 : 162,788.70 = 88,834.12 : x
  2. Step 2: Convert to fraction form
    117,957.90/162,788.70 = 88,834.12/x
  3. Step 3: Cross multiply
    117,957.90x = 162,788.70 × 88,834.12
  4. Step 4: Simplify right side
    117,957.90x = 14,461,190,910.44
  5. Step 5: Solve for x
    x = 14,461,190,910.44/117,957.90
  6. Step 6: Final answer
    x = 122,596.21

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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.