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Finding the Fourth Proportional to 104,560.49, 156,752.57 and 45,351.57

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Solution

The fourth proportional to 104,560.49, 156,752.57 and 45,351.57 is: 67,989.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,560.49 : 156,752.57 = 45,351.57 : x
  2. Step 2: Convert to fraction form
    104,560.49/156,752.57 = 45,351.57/x
  3. Step 3: Cross multiply
    104,560.49x = 156,752.57 × 45,351.57
  4. Step 4: Simplify right side
    104,560.49x = 7,108,975,151.03
  5. Step 5: Solve for x
    x = 7,108,975,151.03/104,560.49
  6. Step 6: Final answer
    x = 67,989.11

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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.