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Finding the Fourth Proportional to 207,792.81, 286,755.39 and 112,299.28

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Solution

The fourth proportional to 207,792.81, 286,755.39 and 112,299.28 is: 154,973.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,792.81 : 286,755.39 = 112,299.28 : x
  2. Step 2: Convert to fraction form
    207,792.81/286,755.39 = 112,299.28/x
  3. Step 3: Cross multiply
    207,792.81x = 286,755.39 × 112,299.28
  4. Step 4: Simplify right side
    207,792.81x = 32,202,423,116.23
  5. Step 5: Solve for x
    x = 32,202,423,116.23/207,792.81
  6. Step 6: Final answer
    x = 154,973.71

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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.