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Finding the Fourth Proportional to 125,615.72, 173,347.71 and 69,025.88

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Solution

The fourth proportional to 125,615.72, 173,347.71 and 69,025.88 is: 95,254.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,615.72 : 173,347.71 = 69,025.88 : x
  2. Step 2: Convert to fraction form
    125,615.72/173,347.71 = 69,025.88/x
  3. Step 3: Cross multiply
    125,615.72x = 173,347.71 × 69,025.88
  4. Step 4: Simplify right side
    125,615.72x = 11,965,478,228.73
  5. Step 5: Solve for x
    x = 11,965,478,228.73/125,615.72
  6. Step 6: Final answer
    x = 95,254.62

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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.