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Finding the Fourth Proportional to 114,005.20, 171,007.80 and 47,423.20

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Solution

The fourth proportional to 114,005.20, 171,007.80 and 47,423.20 is: 71,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,005.20 : 171,007.80 = 47,423.20 : x
  2. Step 2: Convert to fraction form
    114,005.20/171,007.80 = 47,423.20/x
  3. Step 3: Cross multiply
    114,005.20x = 171,007.80 × 47,423.20
  4. Step 4: Simplify right side
    114,005.20x = 8,109,737,100.96
  5. Step 5: Solve for x
    x = 8,109,737,100.96/114,005.20
  6. Step 6: Final answer
    x = 71,134.80

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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.