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Finding the Fourth Proportional to 125,840.51, 173,659.80 and 69,251.88

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Solution

The fourth proportional to 125,840.51, 173,659.80 and 69,251.88 is: 95,567.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,840.51 : 173,659.80 = 69,251.88 : x
  2. Step 2: Convert to fraction form
    125,840.51/173,659.80 = 69,251.88/x
  3. Step 3: Cross multiply
    125,840.51x = 173,659.80 × 69,251.88
  4. Step 4: Simplify right side
    125,840.51x = 12,026,267,630.42
  5. Step 5: Solve for x
    x = 12,026,267,630.42/125,840.51
  6. Step 6: Final answer
    x = 95,567.54

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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.