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Finding the Fourth Proportional to 112,291.92, 154,953.53 and 63,880.97

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Solution

The fourth proportional to 112,291.92, 154,953.53 and 63,880.97 is: 88,150.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,291.92 : 154,953.53 = 63,880.97 : x
  2. Step 2: Convert to fraction form
    112,291.92/154,953.53 = 63,880.97/x
  3. Step 3: Cross multiply
    112,291.92x = 154,953.53 × 63,880.97
  4. Step 4: Simplify right side
    112,291.92x = 9,898,581,801.32
  5. Step 5: Solve for x
    x = 9,898,581,801.32/112,291.92
  6. Step 6: Final answer
    x = 88,150.44

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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.