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Finding the Fourth Proportional to 536,188.78, 804,282.65 and 136,829.55

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Solution

The fourth proportional to 536,188.78, 804,282.65 and 136,829.55 is: 205,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,188.78 : 804,282.65 = 136,829.55 : x
  2. Step 2: Convert to fraction form
    536,188.78/804,282.65 = 136,829.55/x
  3. Step 3: Cross multiply
    536,188.78x = 804,282.65 × 136,829.55
  4. Step 4: Simplify right side
    536,188.78x = 110,049,635,425.09
  5. Step 5: Solve for x
    x = 110,049,635,425.09/536,188.78
  6. Step 6: Final answer
    x = 205,244.20

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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.