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Finding the Fourth Proportional to 231,728.40, 347,598.64 and 73,956.64

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Solution

The fourth proportional to 231,728.40, 347,598.64 and 73,956.64 is: 110,936.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,728.40 : 347,598.64 = 73,956.64 : x
  2. Step 2: Convert to fraction form
    231,728.40/347,598.64 = 73,956.64/x
  3. Step 3: Cross multiply
    231,728.40x = 347,598.64 × 73,956.64
  4. Step 4: Simplify right side
    231,728.40x = 25,707,227,482.97
  5. Step 5: Solve for x
    x = 25,707,227,482.97/231,728.40
  6. Step 6: Final answer
    x = 110,936.89

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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.