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Finding the Fourth Proportional to 124,435.96, 171,748.44 and 73,429.72

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Solution

The fourth proportional to 124,435.96, 171,748.44 and 73,429.72 is: 101,348.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,435.96 : 171,748.44 = 73,429.72 : x
  2. Step 2: Convert to fraction form
    124,435.96/171,748.44 = 73,429.72/x
  3. Step 3: Cross multiply
    124,435.96x = 171,748.44 × 73,429.72
  4. Step 4: Simplify right side
    124,435.96x = 12,611,439,859.64
  5. Step 5: Solve for x
    x = 12,611,439,859.64/124,435.96
  6. Step 6: Final answer
    x = 101,348.84

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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.