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Finding the Fourth Proportional to 125,951.12, 173,812.56 and 69,362

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Solution

The fourth proportional to 125,951.12, 173,812.56 and 69,362 is: 95,719.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,951.12 : 173,812.56 = 69,362 : x
  2. Step 2: Convert to fraction form
    125,951.12/173,812.56 = 69,362/x
  3. Step 3: Cross multiply
    125,951.12x = 173,812.56 × 69,362
  4. Step 4: Simplify right side
    125,951.12x = 12,055,986,786.72
  5. Step 5: Solve for x
    x = 12,055,986,786.72/125,951.12
  6. Step 6: Final answer
    x = 95,719.57

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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.