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Finding the Fourth Proportional to 127,796.91, 176,360.91 and 70,438.29

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Solution

The fourth proportional to 127,796.91, 176,360.91 and 70,438.29 is: 97,205.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,796.91 : 176,360.91 = 70,438.29 : x
  2. Step 2: Convert to fraction form
    127,796.91/176,360.91 = 70,438.29/x
  3. Step 3: Cross multiply
    127,796.91x = 176,360.91 × 70,438.29
  4. Step 4: Simplify right side
    127,796.91x = 12,422,560,923.24
  5. Step 5: Solve for x
    x = 12,422,560,923.24/127,796.91
  6. Step 6: Final answer
    x = 97,205.49

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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.