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Finding the Fourth Proportional to 130,054.80, 179,474.52 and 91,347.03

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Solution

The fourth proportional to 130,054.80, 179,474.52 and 91,347.03 is: 126,058.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,054.80 : 179,474.52 = 91,347.03 : x
  2. Step 2: Convert to fraction form
    130,054.80/179,474.52 = 91,347.03/x
  3. Step 3: Cross multiply
    130,054.80x = 179,474.52 × 91,347.03
  4. Step 4: Simplify right side
    130,054.80x = 16,394,464,362.68
  5. Step 5: Solve for x
    x = 16,394,464,362.68/130,054.80
  6. Step 6: Final answer
    x = 126,058.13

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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.