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Finding the Fourth Proportional to 119,989.80, 179,984.70 and 96,661.80

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Solution

The fourth proportional to 119,989.80, 179,984.70 and 96,661.80 is: 144,992.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,989.80 : 179,984.70 = 96,661.80 : x
  2. Step 2: Convert to fraction form
    119,989.80/179,984.70 = 96,661.80/x
  3. Step 3: Cross multiply
    119,989.80x = 179,984.70 × 96,661.80
  4. Step 4: Simplify right side
    119,989.80x = 17,397,645,074.46
  5. Step 5: Solve for x
    x = 17,397,645,074.46/119,989.80
  6. Step 6: Final answer
    x = 144,992.70

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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.