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Finding the Fourth Proportional to 193,073.04, 289,505.88 and 87,915.60

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Solution

The fourth proportional to 193,073.04, 289,505.88 and 87,915.60 is: 131,826.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,073.04 : 289,505.88 = 87,915.60 : x
  2. Step 2: Convert to fraction form
    193,073.04/289,505.88 = 87,915.60/x
  3. Step 3: Cross multiply
    193,073.04x = 289,505.88 × 87,915.60
  4. Step 4: Simplify right side
    193,073.04x = 25,452,083,143.73
  5. Step 5: Solve for x
    x = 25,452,083,143.73/193,073.04
  6. Step 6: Final answer
    x = 131,826.19

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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.