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Finding the Fourth Proportional to 110,972, 166,479.88 and 36,087.32

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Solution

The fourth proportional to 110,972, 166,479.88 and 36,087.32 is: 54,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,972 : 166,479.88 = 36,087.32 : x
  2. Step 2: Convert to fraction form
    110,972/166,479.88 = 36,087.32/x
  3. Step 3: Cross multiply
    110,972x = 166,479.88 × 36,087.32
  4. Step 4: Simplify right side
    110,972x = 6,007,812,703.12
  5. Step 5: Solve for x
    x = 6,007,812,703.12/110,972
  6. Step 6: Final answer
    x = 54,138.10

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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.