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Finding the Fourth Proportional to 165,365.64, 247,851.60 and 115,173.96

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Solution

The fourth proportional to 165,365.64, 247,851.60 and 115,173.96 is: 172,623.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,365.64 : 247,851.60 = 115,173.96 : x
  2. Step 2: Convert to fraction form
    165,365.64/247,851.60 = 115,173.96/x
  3. Step 3: Cross multiply
    165,365.64x = 247,851.60 × 115,173.96
  4. Step 4: Simplify right side
    165,365.64x = 28,546,050,264.34
  5. Step 5: Solve for x
    x = 28,546,050,264.34/165,365.64
  6. Step 6: Final answer
    x = 172,623.83

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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.