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Finding the Fourth Proportional to 231,396.64, 347,094.96 and 120,804.64

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Solution

The fourth proportional to 231,396.64, 347,094.96 and 120,804.64 is: 181,206.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,396.64 : 347,094.96 = 120,804.64 : x
  2. Step 2: Convert to fraction form
    231,396.64/347,094.96 = 120,804.64/x
  3. Step 3: Cross multiply
    231,396.64x = 347,094.96 × 120,804.64
  4. Step 4: Simplify right side
    231,396.64x = 41,930,681,688.61
  5. Step 5: Solve for x
    x = 41,930,681,688.61/231,396.64
  6. Step 6: Final answer
    x = 181,206.96

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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.