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Finding the Fourth Proportional to 149,364.59, 206,028.92 and 88,890.08

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Solution

The fourth proportional to 149,364.59, 206,028.92 and 88,890.08 is: 122,612.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,364.59 : 206,028.92 = 88,890.08 : x
  2. Step 2: Convert to fraction form
    149,364.59/206,028.92 = 88,890.08/x
  3. Step 3: Cross multiply
    149,364.59x = 206,028.92 × 88,890.08
  4. Step 4: Simplify right side
    149,364.59x = 18,313,925,706.52
  5. Step 5: Solve for x
    x = 18,313,925,706.52/149,364.59
  6. Step 6: Final answer
    x = 122,612.24

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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.