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Finding the Fourth Proportional to 127,802.58, 176,365.20 and 69,659.82

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Solution

The fourth proportional to 127,802.58, 176,365.20 and 69,659.82 is: 96,129.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,802.58 : 176,365.20 = 69,659.82 : x
  2. Step 2: Convert to fraction form
    127,802.58/176,365.20 = 69,659.82/x
  3. Step 3: Cross multiply
    127,802.58x = 176,365.20 × 69,659.82
  4. Step 4: Simplify right side
    127,802.58x = 12,285,568,086.26
  5. Step 5: Solve for x
    x = 12,285,568,086.26/127,802.58
  6. Step 6: Final answer
    x = 96,129.27

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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.