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Finding the Fourth Proportional to 125,900.92, 188,968.02 and 63,615.16

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Solution

The fourth proportional to 125,900.92, 188,968.02 and 63,615.16 is: 95,481.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,900.92 : 188,968.02 = 63,615.16 : x
  2. Step 2: Convert to fraction form
    125,900.92/188,968.02 = 63,615.16/x
  3. Step 3: Cross multiply
    125,900.92x = 188,968.02 × 63,615.16
  4. Step 4: Simplify right side
    125,900.92x = 12,021,230,827.18
  5. Step 5: Solve for x
    x = 12,021,230,827.18/125,900.92
  6. Step 6: Final answer
    x = 95,481.68

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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.