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Finding the Fourth Proportional to 275,557.79, 412,951.80 and 148,925.09

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Solution

The fourth proportional to 275,557.79, 412,951.80 and 148,925.09 is: 223,179.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,557.79 : 412,951.80 = 148,925.09 : x
  2. Step 2: Convert to fraction form
    275,557.79/412,951.80 = 148,925.09/x
  3. Step 3: Cross multiply
    275,557.79x = 412,951.80 × 148,925.09
  4. Step 4: Simplify right side
    275,557.79x = 61,498,883,980.66
  5. Step 5: Solve for x
    x = 61,498,883,980.66/275,557.79
  6. Step 6: Final answer
    x = 223,179.62

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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.