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Finding the Fourth Proportional to 348,609.80, 522,963.30 and 148,928.60

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Solution

The fourth proportional to 348,609.80, 522,963.30 and 148,928.60 is: 223,413.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,609.80 : 522,963.30 = 148,928.60 : x
  2. Step 2: Convert to fraction form
    348,609.80/522,963.30 = 148,928.60/x
  3. Step 3: Cross multiply
    348,609.80x = 522,963.30 × 148,928.60
  4. Step 4: Simplify right side
    348,609.80x = 77,884,192,120.38
  5. Step 5: Solve for x
    x = 77,884,192,120.38/348,609.80
  6. Step 6: Final answer
    x = 223,413.66

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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.