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Finding the Fourth Proportional to 127,440.14, 175,871.81 and 70,081.81

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Solution

The fourth proportional to 127,440.14, 175,871.81 and 70,081.81 is: 96,715.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,440.14 : 175,871.81 = 70,081.81 : x
  2. Step 2: Convert to fraction form
    127,440.14/175,871.81 = 70,081.81/x
  3. Step 3: Cross multiply
    127,440.14x = 175,871.81 × 70,081.81
  4. Step 4: Simplify right side
    127,440.14x = 12,325,414,772.78
  5. Step 5: Solve for x
    x = 12,325,414,772.78/127,440.14
  6. Step 6: Final answer
    x = 96,715.33

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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.