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Finding the Fourth Proportional to 136,574.54, 204,861.90 and 43,087.58

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Solution

The fourth proportional to 136,574.54, 204,861.90 and 43,087.58 is: 64,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,574.54 : 204,861.90 = 43,087.58 : x
  2. Step 2: Convert to fraction form
    136,574.54/204,861.90 = 43,087.58/x
  3. Step 3: Cross multiply
    136,574.54x = 204,861.90 × 43,087.58
  4. Step 4: Simplify right side
    136,574.54x = 8,827,003,505.20
  5. Step 5: Solve for x
    x = 8,827,003,505.20/136,574.54
  6. Step 6: Final answer
    x = 64,631.40

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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.