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Finding the Fourth Proportional to 262,451.46, 393,679.08 and 112,565.28

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Solution

The fourth proportional to 262,451.46, 393,679.08 and 112,565.28 is: 168,848.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,451.46 : 393,679.08 = 112,565.28 : x
  2. Step 2: Convert to fraction form
    262,451.46/393,679.08 = 112,565.28/x
  3. Step 3: Cross multiply
    262,451.46x = 393,679.08 × 112,565.28
  4. Step 4: Simplify right side
    262,451.46x = 44,314,595,870.34
  5. Step 5: Solve for x
    x = 44,314,595,870.34/262,451.46
  6. Step 6: Final answer
    x = 168,848.73

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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.