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Finding the Fourth Proportional to 121,692.66, 182,544 and 41,785.50

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Solution

The fourth proportional to 121,692.66, 182,544 and 41,785.50 is: 62,679.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,692.66 : 182,544 = 41,785.50 : x
  2. Step 2: Convert to fraction form
    121,692.66/182,544 = 41,785.50/x
  3. Step 3: Cross multiply
    121,692.66x = 182,544 × 41,785.50
  4. Step 4: Simplify right side
    121,692.66x = 7,627,692,312
  5. Step 5: Solve for x
    x = 7,627,692,312/121,692.66
  6. Step 6: Final answer
    x = 62,679.97

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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.