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Finding the Fourth Proportional to 148,975.80, 223,463.70 and 136,728.60

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Solution

The fourth proportional to 148,975.80, 223,463.70 and 136,728.60 is: 205,092.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,975.80 : 223,463.70 = 136,728.60 : x
  2. Step 2: Convert to fraction form
    148,975.80/223,463.70 = 136,728.60/x
  3. Step 3: Cross multiply
    148,975.80x = 223,463.70 × 136,728.60
  4. Step 4: Simplify right side
    148,975.80x = 30,553,878,851.82
  5. Step 5: Solve for x
    x = 30,553,878,851.82/148,975.80
  6. Step 6: Final answer
    x = 205,092.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.