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Finding the Fourth Proportional to 127,305.56, 175,676.76 and 70,720.52

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Solution

The fourth proportional to 127,305.56, 175,676.76 and 70,720.52 is: 97,591.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,305.56 : 175,676.76 = 70,720.52 : x
  2. Step 2: Convert to fraction form
    127,305.56/175,676.76 = 70,720.52/x
  3. Step 3: Cross multiply
    127,305.56x = 175,676.76 × 70,720.52
  4. Step 4: Simplify right side
    127,305.56x = 12,423,951,819.12
  5. Step 5: Solve for x
    x = 12,423,951,819.12/127,305.56
  6. Step 6: Final answer
    x = 97,591.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.