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Finding the Fourth Proportional to 193,231.20, 289,501.20 and 163,509.60

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Solution

The fourth proportional to 193,231.20, 289,501.20 and 163,509.60 is: 244,971.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,231.20 : 289,501.20 = 163,509.60 : x
  2. Step 2: Convert to fraction form
    193,231.20/289,501.20 = 163,509.60/x
  3. Step 3: Cross multiply
    193,231.20x = 289,501.20 × 163,509.60
  4. Step 4: Simplify right side
    193,231.20x = 47,336,225,411.52
  5. Step 5: Solve for x
    x = 47,336,225,411.52/193,231.20
  6. Step 6: Final answer
    x = 244,971.96

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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.