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Finding the Fourth Proportional to 126,692.45, 174,830.30 and 75,733.23

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Solution

The fourth proportional to 126,692.45, 174,830.30 and 75,733.23 is: 104,508.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,692.45 : 174,830.30 = 75,733.23 : x
  2. Step 2: Convert to fraction form
    126,692.45/174,830.30 = 75,733.23/x
  3. Step 3: Cross multiply
    126,692.45x = 174,830.30 × 75,733.23
  4. Step 4: Simplify right side
    126,692.45x = 13,240,462,898.40
  5. Step 5: Solve for x
    x = 13,240,462,898.40/126,692.45
  6. Step 6: Final answer
    x = 104,508.69

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1.5x scale

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.