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Finding the Fourth Proportional to 130,087.68, 195,160.68 and 54,187.44

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Solution

The fourth proportional to 130,087.68, 195,160.68 and 54,187.44 is: 81,293.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,087.68 : 195,160.68 = 54,187.44 : x
  2. Step 2: Convert to fraction form
    130,087.68/195,160.68 = 54,187.44/x
  3. Step 3: Cross multiply
    130,087.68x = 195,160.68 × 54,187.44
  4. Step 4: Simplify right side
    130,087.68x = 10,575,257,637.86
  5. Step 5: Solve for x
    x = 10,575,257,637.86/130,087.68
  6. Step 6: Final answer
    x = 81,293.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.