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Finding the Fourth Proportional to 146,891.96, 202,772.90 and 99,209.89

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Solution

The fourth proportional to 146,891.96, 202,772.90 and 99,209.89 is: 136,951.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,891.96 : 202,772.90 = 99,209.89 : x
  2. Step 2: Convert to fraction form
    146,891.96/202,772.90 = 99,209.89/x
  3. Step 3: Cross multiply
    146,891.96x = 202,772.90 × 99,209.89
  4. Step 4: Simplify right side
    146,891.96x = 20,117,076,845.07
  5. Step 5: Solve for x
    x = 20,117,076,845.07/146,891.96
  6. Step 6: Final answer
    x = 136,951.52

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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.