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Finding the Fourth Proportional to 132,807.60, 199,081.80 and 118,810.80

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Solution

The fourth proportional to 132,807.60, 199,081.80 and 118,810.80 is: 178,100.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,807.60 : 199,081.80 = 118,810.80 : x
  2. Step 2: Convert to fraction form
    132,807.60/199,081.80 = 118,810.80/x
  3. Step 3: Cross multiply
    132,807.60x = 199,081.80 × 118,810.80
  4. Step 4: Simplify right side
    132,807.60x = 23,653,067,923.44
  5. Step 5: Solve for x
    x = 23,653,067,923.44/132,807.60
  6. Step 6: Final answer
    x = 178,100.26

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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.