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Finding the Fourth Proportional to 136,103.96, 187,829.88 and 75,675.68

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Solution

The fourth proportional to 136,103.96, 187,829.88 and 75,675.68 is: 104,436.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,103.96 : 187,829.88 = 75,675.68 : x
  2. Step 2: Convert to fraction form
    136,103.96/187,829.88 = 75,675.68/x
  3. Step 3: Cross multiply
    136,103.96x = 187,829.88 × 75,675.68
  4. Step 4: Simplify right side
    136,103.96x = 14,214,153,893.32
  5. Step 5: Solve for x
    x = 14,214,153,893.32/136,103.96
  6. Step 6: Final answer
    x = 104,436.01

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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.