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Finding the Fourth Proportional to 364,636.90, 547,043.37 and 136,934.38

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Solution

The fourth proportional to 364,636.90, 547,043.37 and 136,934.38 is: 205,434.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,636.90 : 547,043.37 = 136,934.38 : x
  2. Step 2: Convert to fraction form
    364,636.90/547,043.37 = 136,934.38/x
  3. Step 3: Cross multiply
    364,636.90x = 547,043.37 × 136,934.38
  4. Step 4: Simplify right side
    364,636.90x = 74,909,044,704.06
  5. Step 5: Solve for x
    x = 74,909,044,704.06/364,636.90
  6. Step 6: Final answer
    x = 205,434.62

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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.