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Finding the Fourth Proportional to 136,357.56, 204,554.16 and 47,636.64

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Solution

The fourth proportional to 136,357.56, 204,554.16 and 47,636.64 is: 71,461.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,357.56 : 204,554.16 = 47,636.64 : x
  2. Step 2: Convert to fraction form
    136,357.56/204,554.16 = 47,636.64/x
  3. Step 3: Cross multiply
    136,357.56x = 204,554.16 × 47,636.64
  4. Step 4: Simplify right side
    136,357.56x = 9,744,272,880.42
  5. Step 5: Solve for x
    x = 9,744,272,880.42/136,357.56
  6. Step 6: Final answer
    x = 71,461.19

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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.