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Finding the Fourth Proportional to 104,557.56, 156,748.16 and 45,348.63

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Solution

The fourth proportional to 104,557.56, 156,748.16 and 45,348.63 is: 67,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,557.56 : 156,748.16 = 45,348.63 : x
  2. Step 2: Convert to fraction form
    104,557.56/156,748.16 = 45,348.63/x
  3. Step 3: Cross multiply
    104,557.56x = 156,748.16 × 45,348.63
  4. Step 4: Simplify right side
    104,557.56x = 7,108,313,527.28
  5. Step 5: Solve for x
    x = 7,108,313,527.28/104,557.56
  6. Step 6: Final answer
    x = 67,984.70

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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.