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Finding the Fourth Proportional to 171,191.70, 256,848.30 and 76,413.24

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Solution

The fourth proportional to 171,191.70, 256,848.30 and 76,413.24 is: 114,646.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,191.70 : 256,848.30 = 76,413.24 : x
  2. Step 2: Convert to fraction form
    171,191.70/256,848.30 = 76,413.24/x
  3. Step 3: Cross multiply
    171,191.70x = 256,848.30 × 76,413.24
  4. Step 4: Simplify right side
    171,191.70x = 19,626,610,791.49
  5. Step 5: Solve for x
    x = 19,626,610,791.49/171,191.70
  6. Step 6: Final answer
    x = 114,646.98

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1.5x scale

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.