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Finding the Fourth Proportional to 134,098.70, 201,277.65 and 81,610.70

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Solution

The fourth proportional to 134,098.70, 201,277.65 and 81,610.70 is: 122,494.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,098.70 : 201,277.65 = 81,610.70 : x
  2. Step 2: Convert to fraction form
    134,098.70/201,277.65 = 81,610.70/x
  3. Step 3: Cross multiply
    134,098.70x = 201,277.65 × 81,610.70
  4. Step 4: Simplify right side
    134,098.70x = 16,426,409,910.86
  5. Step 5: Solve for x
    x = 16,426,409,910.86/134,098.70
  6. Step 6: Final answer
    x = 122,494.92

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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.