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Finding the Fourth Proportional to 364,635.90, 547,041.87 and 136,933.38

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Solution

The fourth proportional to 364,635.90, 547,041.87 and 136,933.38 is: 205,433.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,635.90 : 547,041.87 = 136,933.38 : x
  2. Step 2: Convert to fraction form
    364,635.90/547,041.87 = 136,933.38/x
  3. Step 3: Cross multiply
    364,635.90x = 547,041.87 × 136,933.38
  4. Step 4: Simplify right side
    364,635.90x = 74,908,292,260.62
  5. Step 5: Solve for x
    x = 74,908,292,260.62/364,635.90
  6. Step 6: Final answer
    x = 205,433.12

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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.