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Finding the Fourth Proportional to 126,860.72, 190,267.25 and 63,663.87

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Solution

The fourth proportional to 126,860.72, 190,267.25 and 63,663.87 is: 95,483.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,860.72 : 190,267.25 = 63,663.87 : x
  2. Step 2: Convert to fraction form
    126,860.72/190,267.25 = 63,663.87/x
  3. Step 3: Cross multiply
    126,860.72x = 190,267.25 × 63,663.87
  4. Step 4: Simplify right side
    126,860.72x = 12,113,149,150.94
  5. Step 5: Solve for x
    x = 12,113,149,150.94/126,860.72
  6. Step 6: Final answer
    x = 95,483.85

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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.