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Finding the Fourth Proportional to 171,845.87, 257,957.28 and 136,534.10

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Solution

The fourth proportional to 171,845.87, 257,957.28 and 136,534.10 is: 204,950.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,845.87 : 257,957.28 = 136,534.10 : x
  2. Step 2: Convert to fraction form
    171,845.87/257,957.28 = 136,534.10/x
  3. Step 3: Cross multiply
    171,845.87x = 257,957.28 × 136,534.10
  4. Step 4: Simplify right side
    171,845.87x = 35,219,963,773.46
  5. Step 5: Solve for x
    x = 35,219,963,773.46/171,845.87
  6. Step 6: Final answer
    x = 204,950.89

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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.