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Finding the Fourth Proportional to 193,125.60, 289,688.40 and 146,469.60

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Solution

The fourth proportional to 193,125.60, 289,688.40 and 146,469.60 is: 219,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,125.60 : 289,688.40 = 146,469.60 : x
  2. Step 2: Convert to fraction form
    193,125.60/289,688.40 = 146,469.60/x
  3. Step 3: Cross multiply
    193,125.60x = 289,688.40 × 146,469.60
  4. Step 4: Simplify right side
    193,125.60x = 42,430,544,072.64
  5. Step 5: Solve for x
    x = 42,430,544,072.64/193,125.60
  6. Step 6: Final answer
    x = 219,704.40

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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.