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Finding the Fourth Proportional to 104,717.60, 156,903.60 and 89,165.60

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Solution

The fourth proportional to 104,717.60, 156,903.60 and 89,165.60 is: 133,601.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,717.60 : 156,903.60 = 89,165.60 : x
  2. Step 2: Convert to fraction form
    104,717.60/156,903.60 = 89,165.60/x
  3. Step 3: Cross multiply
    104,717.60x = 156,903.60 × 89,165.60
  4. Step 4: Simplify right side
    104,717.60x = 13,990,403,636.16
  5. Step 5: Solve for x
    x = 13,990,403,636.16/104,717.60
  6. Step 6: Final answer
    x = 133,601.26

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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.