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Finding the Fourth Proportional to 111,582.92, 168,141.95 and 92,295.56

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Solution

The fourth proportional to 111,582.92, 168,141.95 and 92,295.56 is: 139,078.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,582.92 : 168,141.95 = 92,295.56 : x
  2. Step 2: Convert to fraction form
    111,582.92/168,141.95 = 92,295.56/x
  3. Step 3: Cross multiply
    111,582.92x = 168,141.95 × 92,295.56
  4. Step 4: Simplify right side
    111,582.92x = 15,518,755,434.74
  5. Step 5: Solve for x
    x = 15,518,755,434.74/111,582.92
  6. Step 6: Final answer
    x = 139,078.23

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.