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Finding the Fourth Proportional to 130,103.76, 179,523.36 and 73,494.48

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Solution

The fourth proportional to 130,103.76, 179,523.36 and 73,494.48 is: 101,411.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,103.76 : 179,523.36 = 73,494.48 : x
  2. Step 2: Convert to fraction form
    130,103.76/179,523.36 = 73,494.48/x
  3. Step 3: Cross multiply
    130,103.76x = 179,523.36 × 73,494.48
  4. Step 4: Simplify right side
    130,103.76x = 13,193,975,991.05
  5. Step 5: Solve for x
    x = 13,193,975,991.05/130,103.76
  6. Step 6: Final answer
    x = 101,411.18

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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.