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Finding the Fourth Proportional to 647,185.32, 970,712.37 and 173,809.17

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Solution

The fourth proportional to 647,185.32, 970,712.37 and 173,809.17 is: 260,696.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,185.32 : 970,712.37 = 173,809.17 : x
  2. Step 2: Convert to fraction form
    647,185.32/970,712.37 = 173,809.17/x
  3. Step 3: Cross multiply
    647,185.32x = 970,712.37 × 173,809.17
  4. Step 4: Simplify right side
    647,185.32x = 168,718,711,338.43
  5. Step 5: Solve for x
    x = 168,718,711,338.43/647,185.32
  6. Step 6: Final answer
    x = 260,696.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.