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Finding the Fourth Proportional to 134,652.81, 185,682.78 and 88,724.50

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Solution

The fourth proportional to 134,652.81, 185,682.78 and 88,724.50 is: 122,348.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,652.81 : 185,682.78 = 88,724.50 : x
  2. Step 2: Convert to fraction form
    134,652.81/185,682.78 = 88,724.50/x
  3. Step 3: Cross multiply
    134,652.81x = 185,682.78 × 88,724.50
  4. Step 4: Simplify right side
    134,652.81x = 16,474,611,814.11
  5. Step 5: Solve for x
    x = 16,474,611,814.11/134,652.81
  6. Step 6: Final answer
    x = 122,348.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.