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Finding the Fourth Proportional to 181,897.90, 272,780.33 and 69,522.55

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Solution

The fourth proportional to 181,897.90, 272,780.33 and 69,522.55 is: 104,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,897.90 : 272,780.33 = 69,522.55 : x
  2. Step 2: Convert to fraction form
    181,897.90/272,780.33 = 69,522.55/x
  3. Step 3: Cross multiply
    181,897.90x = 272,780.33 × 69,522.55
  4. Step 4: Simplify right side
    181,897.90x = 18,964,384,131.44
  5. Step 5: Solve for x
    x = 18,964,384,131.44/181,897.90
  6. Step 6: Final answer
    x = 104,258.40

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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.