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Finding the Fourth Proportional to 125,692.47, 173,458.71 and 69,103.95

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Solution

The fourth proportional to 125,692.47, 173,458.71 and 69,103.95 is: 95,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,692.47 : 173,458.71 = 69,103.95 : x
  2. Step 2: Convert to fraction form
    125,692.47/173,458.71 = 69,103.95/x
  3. Step 3: Cross multiply
    125,692.47x = 173,458.71 × 69,103.95
  4. Step 4: Simplify right side
    125,692.47x = 11,986,682,022.90
  5. Step 5: Solve for x
    x = 11,986,682,022.90/125,692.47
  6. Step 6: Final answer
    x = 95,365.16

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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.