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Finding the Fourth Proportional to 125,955.90, 173,811.12 and 69,367.28

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Solution

The fourth proportional to 125,955.90, 173,811.12 and 69,367.28 is: 95,722.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,955.90 : 173,811.12 = 69,367.28 : x
  2. Step 2: Convert to fraction form
    125,955.90/173,811.12 = 69,367.28/x
  3. Step 3: Cross multiply
    125,955.90x = 173,811.12 × 69,367.28
  4. Step 4: Simplify right side
    125,955.90x = 12,056,803,759.10
  5. Step 5: Solve for x
    x = 12,056,803,759.10/125,955.90
  6. Step 6: Final answer
    x = 95,722.42

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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.