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Finding the Fourth Proportional to 193,178.88, 289,602.56 and 87,960.32

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Solution

The fourth proportional to 193,178.88, 289,602.56 and 87,960.32 is: 131,865.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,178.88 : 289,602.56 = 87,960.32 : x
  2. Step 2: Convert to fraction form
    193,178.88/289,602.56 = 87,960.32/x
  3. Step 3: Cross multiply
    193,178.88x = 289,602.56 × 87,960.32
  4. Step 4: Simplify right side
    193,178.88x = 25,473,533,850.42
  5. Step 5: Solve for x
    x = 25,473,533,850.42/193,178.88
  6. Step 6: Final answer
    x = 131,865.00

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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.