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Finding the Fourth Proportional to 491,566.42, 737,389.42 and 136,580.48

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Solution

The fourth proportional to 491,566.42, 737,389.42 and 136,580.48 is: 204,881.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,566.42 : 737,389.42 = 136,580.48 : x
  2. Step 2: Convert to fraction form
    491,566.42/737,389.42 = 136,580.48/x
  3. Step 3: Cross multiply
    491,566.42x = 737,389.42 × 136,580.48
  4. Step 4: Simplify right side
    491,566.42x = 100,713,000,435.60
  5. Step 5: Solve for x
    x = 100,713,000,435.60/491,566.42
  6. Step 6: Final answer
    x = 204,881.77

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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.