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Finding the Fourth Proportional to 136,850.55, 205,274.40 and 43,356.30

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Solution

The fourth proportional to 136,850.55, 205,274.40 and 43,356.30 is: 65,034.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,850.55 : 205,274.40 = 43,356.30 : x
  2. Step 2: Convert to fraction form
    136,850.55/205,274.40 = 43,356.30/x
  3. Step 3: Cross multiply
    136,850.55x = 205,274.40 × 43,356.30
  4. Step 4: Simplify right side
    136,850.55x = 8,899,938,468.72
  5. Step 5: Solve for x
    x = 8,899,938,468.72/136,850.55
  6. Step 6: Final answer
    x = 65,034.00

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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.