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Finding the Fourth Proportional to 71,854.96, 107,745.48 and 38,603.04

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Solution

The fourth proportional to 71,854.96, 107,745.48 and 38,603.04 is: 57,884.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,854.96 : 107,745.48 = 38,603.04 : x
  2. Step 2: Convert to fraction form
    71,854.96/107,745.48 = 38,603.04/x
  3. Step 3: Cross multiply
    71,854.96x = 107,745.48 × 38,603.04
  4. Step 4: Simplify right side
    71,854.96x = 4,159,303,074.26
  5. Step 5: Solve for x
    x = 4,159,303,074.26/71,854.96
  6. Step 6: Final answer
    x = 57,884.70

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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.