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Finding the Fourth Proportional to 186,707.17, 279,973.17 and 68,295.70

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Solution

The fourth proportional to 186,707.17, 279,973.17 and 68,295.70 is: 102,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,707.17 : 279,973.17 = 68,295.70 : x
  2. Step 2: Convert to fraction form
    186,707.17/279,973.17 = 68,295.70/x
  3. Step 3: Cross multiply
    186,707.17x = 279,973.17 × 68,295.70
  4. Step 4: Simplify right side
    186,707.17x = 19,120,963,626.37
  5. Step 5: Solve for x
    x = 19,120,963,626.37/186,707.17
  6. Step 6: Final answer
    x = 102,411.51

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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.