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Finding the Fourth Proportional to 74,671.64, 111,918.42 and 52,060.04

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Solution

The fourth proportional to 74,671.64, 111,918.42 and 52,060.04 is: 78,027.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,671.64 : 111,918.42 = 52,060.04 : x
  2. Step 2: Convert to fraction form
    74,671.64/111,918.42 = 52,060.04/x
  3. Step 3: Cross multiply
    74,671.64x = 111,918.42 × 52,060.04
  4. Step 4: Simplify right side
    74,671.64x = 5,826,477,421.94
  5. Step 5: Solve for x
    x = 5,826,477,421.94/74,671.64
  6. Step 6: Final answer
    x = 78,027.98

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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.