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Finding the Fourth Proportional to 104,618.60, 156,927.90 and 91,496.60

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Solution

The fourth proportional to 104,618.60, 156,927.90 and 91,496.60 is: 137,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,618.60 : 156,927.90 = 91,496.60 : x
  2. Step 2: Convert to fraction form
    104,618.60/156,927.90 = 91,496.60/x
  3. Step 3: Cross multiply
    104,618.60x = 156,927.90 × 91,496.60
  4. Step 4: Simplify right side
    104,618.60x = 14,358,369,295.14
  5. Step 5: Solve for x
    x = 14,358,369,295.14/104,618.60
  6. Step 6: Final answer
    x = 137,244.90

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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.