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Finding the Fourth Proportional to 127,279.62, 175,635.59 and 73,568.11

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Solution

The fourth proportional to 127,279.62, 175,635.59 and 73,568.11 is: 101,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,279.62 : 175,635.59 = 73,568.11 : x
  2. Step 2: Convert to fraction form
    127,279.62/175,635.59 = 73,568.11/x
  3. Step 3: Cross multiply
    127,279.62x = 175,635.59 × 73,568.11
  4. Step 4: Simplify right side
    127,279.62x = 12,921,178,037.19
  5. Step 5: Solve for x
    x = 12,921,178,037.19/127,279.62
  6. Step 6: Final answer
    x = 101,518.05

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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.