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Finding the Fourth Proportional to 111,148.96, 166,723.44 and 64,700.32

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Solution

The fourth proportional to 111,148.96, 166,723.44 and 64,700.32 is: 97,050.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,148.96 : 166,723.44 = 64,700.32 : x
  2. Step 2: Convert to fraction form
    111,148.96/166,723.44 = 64,700.32/x
  3. Step 3: Cross multiply
    111,148.96x = 166,723.44 × 64,700.32
  4. Step 4: Simplify right side
    111,148.96x = 10,787,059,919.50
  5. Step 5: Solve for x
    x = 10,787,059,919.50/111,148.96
  6. Step 6: Final answer
    x = 97,050.48

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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.