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Finding the Fourth Proportional to 114,130.80, 171,336.60 and 72,010.80

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Solution

The fourth proportional to 114,130.80, 171,336.60 and 72,010.80 is: 108,104.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,130.80 : 171,336.60 = 72,010.80 : x
  2. Step 2: Convert to fraction form
    114,130.80/171,336.60 = 72,010.80/x
  3. Step 3: Cross multiply
    114,130.80x = 171,336.60 × 72,010.80
  4. Step 4: Simplify right side
    114,130.80x = 12,338,085,635.28
  5. Step 5: Solve for x
    x = 12,338,085,635.28/114,130.80
  6. Step 6: Final answer
    x = 108,104.79

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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.