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Finding the Fourth Proportional to 114,536.61, 171,715.72 and 54,534.21

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Solution

The fourth proportional to 114,536.61, 171,715.72 and 54,534.21 is: 81,758.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,536.61 : 171,715.72 = 54,534.21 : x
  2. Step 2: Convert to fraction form
    114,536.61/171,715.72 = 54,534.21/x
  3. Step 3: Cross multiply
    114,536.61x = 171,715.72 × 54,534.21
  4. Step 4: Simplify right side
    114,536.61x = 9,364,381,576.04
  5. Step 5: Solve for x
    x = 9,364,381,576.04/114,536.61
  6. Step 6: Final answer
    x = 81,758.85

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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.