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Finding the Fourth Proportional to 134,073.53, 184,869.84 and 85,611.74

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Solution

The fourth proportional to 134,073.53, 184,869.84 and 85,611.74 is: 118,047.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,073.53 : 184,869.84 = 85,611.74 : x
  2. Step 2: Convert to fraction form
    134,073.53/184,869.84 = 85,611.74/x
  3. Step 3: Cross multiply
    134,073.53x = 184,869.84 × 85,611.74
  4. Step 4: Simplify right side
    134,073.53x = 15,827,028,072.62
  5. Step 5: Solve for x
    x = 15,827,028,072.62/134,073.53
  6. Step 6: Final answer
    x = 118,047.37

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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.