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Finding the Fourth Proportional to 111,577.42, 167,366.04 and 28,471.42

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Solution

The fourth proportional to 111,577.42, 167,366.04 and 28,471.42 is: 42,707.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,577.42 : 167,366.04 = 28,471.42 : x
  2. Step 2: Convert to fraction form
    111,577.42/167,366.04 = 28,471.42/x
  3. Step 3: Cross multiply
    111,577.42x = 167,366.04 × 28,471.42
  4. Step 4: Simplify right side
    111,577.42x = 4,765,148,818.58
  5. Step 5: Solve for x
    x = 4,765,148,818.58/111,577.42
  6. Step 6: Final answer
    x = 42,707.11

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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.