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Finding the Fourth Proportional to 132,783.90, 199,564.65 and 115,676.70

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Solution

The fourth proportional to 132,783.90, 199,564.65 and 115,676.70 is: 173,853.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,783.90 : 199,564.65 = 115,676.70 : x
  2. Step 2: Convert to fraction form
    132,783.90/199,564.65 = 115,676.70/x
  3. Step 3: Cross multiply
    132,783.90x = 199,564.65 × 115,676.70
  4. Step 4: Simplify right side
    132,783.90x = 23,084,980,148.66
  5. Step 5: Solve for x
    x = 23,084,980,148.66/132,783.90
  6. Step 6: Final answer
    x = 173,853.76

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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.