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Finding the Fourth Proportional to 114,029.52, 171,049.92 and 80,787.12

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Solution

The fourth proportional to 114,029.52, 171,049.92 and 80,787.12 is: 121,184.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,029.52 : 171,049.92 = 80,787.12 : x
  2. Step 2: Convert to fraction form
    114,029.52/171,049.92 = 80,787.12/x
  3. Step 3: Cross multiply
    114,029.52x = 171,049.92 × 80,787.12
  4. Step 4: Simplify right side
    114,029.52x = 13,818,630,413.03
  5. Step 5: Solve for x
    x = 13,818,630,413.03/114,029.52
  6. Step 6: Final answer
    x = 121,184.68

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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.