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Finding the Fourth Proportional to 104,172.48, 156,246.32 and 27,230.40

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Solution

The fourth proportional to 104,172.48, 156,246.32 and 27,230.40 is: 40,842.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,172.48 : 156,246.32 = 27,230.40 : x
  2. Step 2: Convert to fraction form
    104,172.48/156,246.32 = 27,230.40/x
  3. Step 3: Cross multiply
    104,172.48x = 156,246.32 × 27,230.40
  4. Step 4: Simplify right side
    104,172.48x = 4,254,649,792.13
  5. Step 5: Solve for x
    x = 4,254,649,792.13/104,172.48
  6. Step 6: Final answer
    x = 40,842.36

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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.