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Finding the Fourth Proportional to 165,851.55, 248,775.03 and 99,310.05

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Solution

The fourth proportional to 165,851.55, 248,775.03 and 99,310.05 is: 148,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,851.55 : 248,775.03 = 99,310.05 : x
  2. Step 2: Convert to fraction form
    165,851.55/248,775.03 = 99,310.05/x
  3. Step 3: Cross multiply
    165,851.55x = 248,775.03 × 99,310.05
  4. Step 4: Simplify right side
    165,851.55x = 24,705,860,668.05
  5. Step 5: Solve for x
    x = 24,705,860,668.05/165,851.55
  6. Step 6: Final answer
    x = 148,963.70

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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.