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Finding the Fourth Proportional to 163,414.01, 225,535.88 and 99,788.51

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Solution

The fourth proportional to 163,414.01, 225,535.88 and 99,788.51 is: 137,723.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,414.01 : 225,535.88 = 99,788.51 : x
  2. Step 2: Convert to fraction form
    163,414.01/225,535.88 = 99,788.51/x
  3. Step 3: Cross multiply
    163,414.01x = 225,535.88 × 99,788.51
  4. Step 4: Simplify right side
    163,414.01x = 22,505,888,852.90
  5. Step 5: Solve for x
    x = 22,505,888,852.90/163,414.01
  6. Step 6: Final answer
    x = 137,723.13

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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.