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Finding the Fourth Proportional to 193,200.40, 289,800.60 and 167,280.40

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Solution

The fourth proportional to 193,200.40, 289,800.60 and 167,280.40 is: 250,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,200.40 : 289,800.60 = 167,280.40 : x
  2. Step 2: Convert to fraction form
    193,200.40/289,800.60 = 167,280.40/x
  3. Step 3: Cross multiply
    193,200.40x = 289,800.60 × 167,280.40
  4. Step 4: Simplify right side
    193,200.40x = 48,477,960,288.24
  5. Step 5: Solve for x
    x = 48,477,960,288.24/193,200.40
  6. Step 6: Final answer
    x = 250,920.60

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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.