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Finding the Fourth Proportional to 171,813.80, 257,658.90 and 59,463.50

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Solution

The fourth proportional to 171,813.80, 257,658.90 and 59,463.50 is: 89,173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,813.80 : 257,658.90 = 59,463.50 : x
  2. Step 2: Convert to fraction form
    171,813.80/257,658.90 = 59,463.50/x
  3. Step 3: Cross multiply
    171,813.80x = 257,658.90 × 59,463.50
  4. Step 4: Simplify right side
    171,813.80x = 15,321,300,000.15
  5. Step 5: Solve for x
    x = 15,321,300,000.15/171,813.80
  6. Step 6: Final answer
    x = 89,173.86

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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.