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Finding the Fourth Proportional to 192,987.60, 289,740.60 and 123,176.40

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Solution

The fourth proportional to 192,987.60, 289,740.60 and 123,176.40 is: 184,930.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,987.60 : 289,740.60 = 123,176.40 : x
  2. Step 2: Convert to fraction form
    192,987.60/289,740.60 = 123,176.40/x
  3. Step 3: Cross multiply
    192,987.60x = 289,740.60 × 123,176.40
  4. Step 4: Simplify right side
    192,987.60x = 35,689,204,041.84
  5. Step 5: Solve for x
    x = 35,689,204,041.84/192,987.60
  6. Step 6: Final answer
    x = 184,930.04

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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.