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Finding the Fourth Proportional to 127,354.56, 175,736.16 and 70,759.68

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Solution

The fourth proportional to 127,354.56, 175,736.16 and 70,759.68 is: 97,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,354.56 : 175,736.16 = 70,759.68 : x
  2. Step 2: Convert to fraction form
    127,354.56/175,736.16 = 70,759.68/x
  3. Step 3: Cross multiply
    127,354.56x = 175,736.16 × 70,759.68
  4. Step 4: Simplify right side
    127,354.56x = 12,435,034,446.03
  5. Step 5: Solve for x
    x = 12,435,034,446.03/127,354.56
  6. Step 6: Final answer
    x = 97,641.06

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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.