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Finding the Fourth Proportional to 159,957.36, 220,765.77 and 98,739.27

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Solution

The fourth proportional to 159,957.36, 220,765.77 and 98,739.27 is: 136,275.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,957.36 : 220,765.77 = 98,739.27 : x
  2. Step 2: Convert to fraction form
    159,957.36/220,765.77 = 98,739.27/x
  3. Step 3: Cross multiply
    159,957.36x = 220,765.77 × 98,739.27
  4. Step 4: Simplify right side
    159,957.36x = 21,798,250,970.79
  5. Step 5: Solve for x
    x = 21,798,250,970.79/159,957.36
  6. Step 6: Final answer
    x = 136,275.39

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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.